The United States Marine Corps (USMC) is a branch of the United States Armed Forces responsible for providing power projection from the sea,[6] using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States. In the civilian leadership structure of the United States military, the Marine Corps is a component of the United States Department of the Navy,[7][8] often working closely with U.S. naval forces for training, transportation, and logistic purposes; however, in the military leadership structure the Marine Corps is a separate branch.[9]
Captain Samuel Nicholas formed two battalions of Continental Marines on 10 November 1775 in Philadelphia as naval infantry.[10] Since then, the mission of the Marine Corps has evolved with changing military doctrine and American foreign policy. The Marine Corps has served in every American armed conflict and attained prominence in the 20th century when its theories and practices of amphibious warfare proved prescient and ultimately formed the cornerstone of the Pacific campaign of World War II.[11] By the mid-20th century, the Marine Corps had become the dominant theorist and practitioner of amphibious warfare.[12][13][14] Its ability to rapidly respond on short notice to expeditionary crises gives it a strong role in the implementation and execution of American foreign policy.[15]
As of 2010 the United States Marine Corps included just under 203,000 active duty Marines and just under 40,000 reserve Marines.[2] It is the smallest of the United States' armed forces in the Department of Defense. The United States Coast Guard is smaller, about one-fifth the size of the Marine Corps, but it operates under the banner of the Department of Homeland Security. The Marine Corps is nonetheless larger than the armed forces of many significant military powers, being larger than the active duty Israel Defense Forces and the active duty British Army.[16][17]
The Marine Corps accounts for around six percent of the military budget of the United States. The cost per Marine is $20,000 less than the cost of a serviceman from the other services, and the entire force can be used for both hybrid and major combat operations,[18] enabling it to carry out full scale military action, peacekeeping operations and humanitarian aid - the entire Three Block War. However, these per capita costs do not account for support provided by other branches, such as the Navy's amphibious warfare ships and the long range air transport of the USAF.[19] However given expected defense budget cuts, the Marines are well positioned for "fielding cheap options for an uncertain world."[20] The Marine Corps budget is comparably well handled with a tiny fraction of the Anti-Deficiency Act violations of any of the other three major branches.[21]
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The USMC serves as an expeditionary force-in-readiness. As outlined in 10 U.S.C. § 5063 and as originally introduced under the National Security Act of 1947, it has three primary areas of responsibility:
This last clause, while seemingly redundant given the President's position as Commander-in-chief, is a codification of the expeditionary duties of the Marine Corps. It derives from similar language in the Congressional acts "For the Better Organization of the Marine Corps" of 1834, and "Establishing and Organizing a Marine Corps" of 1798. In 1951, the House of Representatives' Armed Services Committee called the clause "one of the most important statutory — and traditional — functions of the Marine Corps." It noted that the corps has more often than not performed actions of a non-naval nature, including its famous actions in Tripoli, the War of 1812, Chapultepec, and numerous counter-insurgency and occupational duties (such as those in Central America), World War I, and the Korean War. While these actions are not accurately described as support of naval campaigns nor as amphibious warfare, their common thread is that they are of an expeditionary nature, using the mobility of the Navy to provide timely intervention in foreign affairs on behalf of American interests.[22]
In addition to its primary duties, the Marine Corps has missions in direct support of the White House and the State Department. The Marine Band, dubbed the "President's Own" by Thomas Jefferson, provides music for state functions at the White House.[23] Marines guard presidential retreats, including Camp David, and the Marines of the Executive Flight Detachment of HMX-1 provide helicopter transport to the President and Vice President, using the call signs "Marine One" and "Marine Two" respectively.[24] By authority of the 1946 Foreign Service Act, the Marine Security Guards of the Marine Embassy Security Command provide security for American embassies, legations, and consulates at more than 140 posts worldwide.[25]
The Marine Corps was founded to serve as an infantry unit aboard naval vessels and was responsible for the security of the ship and its crew by conducting offensive and defensive combat during boarding actions and defending the ship's officers from mutiny; to the latter end, their quarters on ship were often strategically positioned between the officers' quarters and the rest of the vessel. Continental Marines manned raiding parties, both at sea and ashore. America's first amphibious assault landing occurred early in the Revolutionary War on 3 March 1776 as the Marines gained control of Fort Montague and Fort Nassau, a British ammunition depot and naval port in New Providence, the Bahamas. The role of the Marine Corps has expanded significantly since then; as the importance of its original naval mission declined with changing naval warfare doctrine and the professionalization of the naval service, the corps adapted by focusing on what was former secondary missions ashore. The Advanced Base Doctrine of the early 20th century codified their combat duties ashore, outlining the use of Marines in the seizure of bases and other duties on land to support naval campaigns.
Throughout the late 19th and 20th centuries, Marine detachments served aboard Navy cruisers, battleships and carriers. Marine detachments (generally one platoon per cruiser, a company for battleships or carriers) served their traditional duties as ship's landing force, manning the ship's weapons and providing shipboard security. Marine detachments were augmented by members of the ship's company for landing parties, especially in the Caribbean and Mexican campaigns of the early 20th centuries. Marines would develop tactics and techniques of amphibious assault on defended coastlines in time for use in World War II.[26] During World War II, Marines continued to serve on capital ships. They often were assigned to man anti-aircraft batteries. When gun cruisers were retired by the 1960s, the remaining Marine detachments were only seen on battleships and carriers. Its original mission of providing shipboard security finally ended in the 1990s when nuclear weapons were withdrawn from active deployment and the battleships were retired.
The Marine Corps fulfills a vital role in national security as an amphibious, expeditionary, air-ground combined arms task force, capable of forcible entry from the air, land, and sea. It is capable of asymmetric warfare with conventional, irregular, and hybrid forces.
While the Marine Corps does not employ any unique combat arms, as a force it has the unique ability to rapidly deploy a combined-arms task force to almost anywhere in the world within days. The basic structure for all deployed units is a Marine Air-Ground Task Force (MAGTF) that integrates a ground combat element, an aviation combat element and a logistics combat element under a common command element. While the creation of joint commands under the Goldwater–Nichols Act has improved inter-service coordination between each branch, the Corps' ability to permanently maintain integrated multi-element task forces under a single command provides a smoother implementation of combined-arms warfare principles.[11]
The close integration of disparate Marine units stems from an organizational culture centered around the infantry. Every other Marine capability exists to support the infantry. Unlike some Western militaries, the Corps remained conservative against theories proclaiming the ability of new weapons to win wars independently. For example, Marine aviation has always been focused on close air support and has remained largely uninfluenced by air power theories proclaiming that strategic bombing can single-handedly win wars.[26]
This focus on the infantry is matched with the doctrine that "Every Marine is a rifleman", a focus of Commandant Alfred M. Gray, Jr., emphasizing the infantry combat abilities of every Marine. All Marines, regardless of military specialization, receive training as a rifleman; and all officers receive additional training as infantry platoon commanders.[27] For example, at Wake Island, when all of the Marine aircraft were shot down, pilots continued the fight as ground officers, leading supply clerks and cooks in a final defensive effort.[28] As a result, a large degree of initiative and autonomy is expected of junior Marines, particularly the NCOs (corporals and sergeants), as compared with many other military organizations. The Marine Corps emphasizes authority and responsibility downward to a greater degree than the other military services. Flexibility of execution is implemented via an emphasis on "commander's intent" as a guiding principle for carrying out orders; specifying the end state but leaving open the method of execution.[29] The amphibious assault techniques developed for World War II evolved, with the addition of air assault and maneuver warfare doctrine, into the current "Operational Maneuver from the Sea" doctrine of power projection from the seas.[6] The Marines are credited with the development of helicopter insertion doctrine and were the earliest in the American military to widely adopt maneuver-warfare principles which emphasize low-level initiative and flexible execution. In light of recent warfare that has strayed from the Corps' traditional missions,[30] it has renewed an emphasis on amphibious capabilities.[31]
The Marine Corps relies on the Navy for sealift to provide its rapid deployment capabilities. In addition to basing a third of the Fleet Marine Force in Japan, Marine Expeditionary Units (MEU) are typically stationed at sea. This allows the ability to function as first responders to international incidents. The United States Army now maintains light infantry units capable of rapid worldwide deployment, but those units do not match the combined-arms integration of a MAGTF and lack the logistics that the Navy provides.[11] For this reason, the Marine Corps is often assigned to non-combat missions such as the evacuation of Americans from unstable countries and providing humanitarian relief during natural disasters. In larger conflicts, Marines act as a stopgap, to get into and hold an area until larger units can be mobilized. The Corps performed this role in World War I and the Korean War, where Marines were the first significant combat units deployed from the United States and held the line until the country could mobilize for war.[32] To aid rapid deployment, the Maritime Pre-Positioning System was developed: fleets of container ships are positioned throughout the world with enough equipment and supplies for a Marine Expeditionary Force to deploy for 30 days.
Two small manuals published during the 1930s would establish USMC doctrine in two areas. The Small Wars Manual laid the framework for Marine counter-insurgency operations from Vietnam to Iraq and Afghanistan while the Tentative Landing Operations Manual established the doctrine for the amphibious operations of World War II. "Operational Maneuver from the Sea" is the current doctrine of power projection.[6]
As an expeditionary force, the USMC is planning to reduce its logistical requirements and by 2025 eliminate all liquid fuel use other than for highly efficient vehicles.[33]
The United States Marine Corps traces its institutional roots to the Continental Marines of the American Revolutionary War, formed by Captain Samuel Nicholas by a resolution of the Second Continental Congress on 10 November 1775, to raise 2 battalions of Marines. That date is regarded and celebrated as the date of the Marine Corps' "birthday". At the end of the American Revolution, both the Continental Navy and Continental Marines were disbanded in April 1783. The institution itself would not be resurrected until July 11, 1798. At that time, in preparation for the Quasi-War with France, Congress created the United States Marine Corps.[34] Marines had been enlisted by the War Department as early as August 1797[35] for service in the new-build frigates authorized by the Congressional "Act to provide a Naval Armament" of March 18, 1794,[36] which specified the numbers of Marines to be recruited for each frigate.
The Marines' most famous action of this period occurred during the First Barbary War (1801–1805) against the Barbary pirates,[37] when William Eaton and First Lieutenant Presley O'Bannon led eight Marines and 500 mercenaries in an effort to capture Tripoli. Though they only reached Derna, the action at Tripoli has been immortalized in the Marines' hymn and the Mameluke Sword carried by Marine officers.[38]
During the War of 1812, Marine naval detachments took part in the great frigate duels that characterized the war, which were the first American victories in the conflict. Their most significant contributions were delaying the British march to Washington, D.C. at the Battle of Bladensburg and holding the center of Gen. Andrew Jackson's defensive line at the defense of New Orleans. By the end of the war, the Marines had acquired a well-deserved reputation as expert marksmen, especially in ship-to-ship actions.[38]
After the war, the Marine Corps fell into a depression that ended with the appointment of Archibald Henderson as its fifth Commandant in 1820. Under his tenure, the Corps took on expeditionary duties in the Caribbean, the Gulf of Mexico, Key West, West Africa, the Falkland Islands, and Sumatra. Commandant Henderson is credited with thwarting President Jackson's attempts to combine and integrate the Marine Corps with the Army.[38] Instead, Congress passed the Act for the Better Organization of the Marine Corps in 1834, stipulating that the Corps was part of the Department of the Navy as a sister service to the Navy.[39] This would be the first of many times that the existence of the Corps was challenged.
Commandant Henderson volunteered the Marines for service in the Seminole Wars of 1835, personally leading nearly half of the entire Corps (two battalions) to war. A decade later, in the Mexican–American War (1846–1848), the Marines made their famed assault on Chapultepec Palace in Mexico City, which would be later celebrated by the phrase "From The Halls of Montezuma" in Marines' hymn. In the 1850s, the Marines would see further service in Panama and Asia, escorting Matthew Perry's East India Squadron on its historic trip to the Far East.[40]
With their vast service in foreign engagements, the Marine Corps played a moderate role in the Civil War (1861–1865); their most prominent task was blockade duty. As more and more states seceded from the Union, about half of the Corps' officers left the Union to join the Confederacy and form the Confederate States Marine Corps, which ultimately played little part in the war. The battalion of recruits formed for the First Battle of Bull Run (First Manassas) performed poorly, retreating with the rest of the Union forces.[32] Blockade duty included sea-based amphibious operations to secure forward bases. In late November, 1861, Marines and sailors landed a reconnaissance in force from the USS Flag at Tybee Island, Georgia, to occupy the Lighthouse and Martello Tower on the northern end of the island. It would later be the Army base for bombardment of Fort Pulaski.[41]
The remainder of the 19th century was marked by declining strength and introspection about the mission of the Marine Corps. The Navy's transition from sail to steam put into question the need for Marines on naval ships. Meanwhile, Marines served as a convenient resource for interventions and landings to protect American lives and interests overseas. The Corps was involved in over 28 separate interventions in the 30 years from the end of the American Civil War to the end of 19th century. They would be called upon to stem political and labor unrest within the United States.[42] Under Commandant Jacob Zeilin's tenure, Marine customs and traditions took shape: the Corps adopted the Marine Corps emblem on 19 November 1868. It was during this time that "The Marines' Hymn" was first heard. Around 1883, the Marines adopted their current motto "Semper Fidelis" (English: Always Faithful).[38]
John Philip Sousa, the musician and composer, enlisted as a Marine apprentice at the age of 13, serving from 1867 until 1872, and again from 1880 to 1892 as the leader of the Marine Band.
During the Spanish–American War (1898), Marines led American forces ashore in the Philippines, Cuba, and Puerto Rico, demonstrating their readiness for deployment. At Guantánamo Bay, Cuba, the Marines seized an advanced naval base that remains in use today. Between 1899 and 1916, the Corps continued its record of vigorous participation in foreign expeditions, including the Philippine–American War, the Boxer Rebellion in China (1899–1901), Panama, the Cuban Pacifications, the Perdicaris Incident in Morocco, Veracruz, Santo Domingo, and the Banana Wars in Haiti and Nicaragua; the experiences gained in counter-insurgency and guerrilla operations during this period were consolidated into the Small Wars Manual.[43]
During World War I veteran Marines served a central role in the late American entry into the conflict. Unlike the Army, the Marine Corps had a deep pool of officers and NCOs with battle experience, and experienced a smaller expansion. Here, the Marines fought their famed battle at Belleau Wood, creating the Marines' reputation in modern history. While its previous expeditionary experiences had not earned it much acclaim in the Western world, the Marines' ferocity and toughness in France earned them the respect of the Germans, who rated them of stormtrooper quality. Though Marines and American media reported that Germans had nicknamed them Teufel Hunden as meaning "Devil Dogs", there is no evidence of this in German records (as Teufelshunde would be the proper German phrase), nevertheless, the name stuck.[44] The Corps had entered the war with 511 officers and 13,214 enlisted personnel, and by 11 November 1918 had reached a strength of 2,400 officers and 70,000 men.[45]
Between the World Wars, the Marine Corps was headed by Commandant John A. Lejeune, and under his leadership, the Corps presciently studied and developed amphibious techniques that would be of great use in World War II. Many officers, including Lt. Col. Earl Hancock "Pete" Ellis, foresaw a war in the Pacific with Japan and took preparations for such a conflict. Through 1941, as the prospect of war grew, the Corps pushed urgently for joint amphibious exercises and acquired amphibious equipment that would prove of great use in the upcoming conflict.[46]
In World War II, the Marines played a central role in the Pacific War. The battles of Guadalcanal, Bougainville, Tarawa, Guam, Tinian, Saipan, Peleliu, Iwo Jima, and Okinawa saw fierce fighting between Marines and the Imperial Japanese Army.
Philip Johnston proposed the use of Navajo as a code language to the Corps. The idea was accepted, and the Navajo code was formally developed and modeled on the Joint Army/Navy Phonetic Alphabet.
During the battle of Iwo Jima, photographer Joe Rosenthal took the famous photograph Raising the Flag on Iwo Jima of five Marines and one Navy Corpsman raising the American flag on Mt. Suribachi. Secretary of the Navy James Forrestal, having come ashore earlier that day, said of the flag-raising, "...the raising of that flag on Suribachi means a Marine Corps for the next five hundred years." The acts of the Marines during the war added to their already significant popular reputation. By the end of the war, the Corps expanded from two brigades to six divisions, five air wings, and supporting troops, totaling about 485,000 Marines. In addition, 20 defense battalions and a parachute battalion were set raised.[47] Nearly 87,000 Marines were casualties during World War II (including nearly 20,000 killed), and 82 were awarded the Medal of Honor.[48]
Despite Secretary Forrestal's prediction, the Corps faced an immediate institutional crisis following the war due to the low budget. Army generals pushing for a strengthened and reorganized defense establishment attempted to fold the Marine mission and assets into the Navy and Army. Drawing on hastily assembled Congressional support, the Marine Corps rebuffed such efforts to dismantle the Corps, resulting in statutory protection of the Marine Corps in the National Security Act of 1947.[49] Shortly afterward, in 1952 the Douglas-Mansfield Bill afforded the Commandant an equal voice with the Joint Chiefs of Staff on matters relating to the Marines and established the structure of three active divisions and air wings that remain today.
The Korean War (1950–1953) saw the hastily formed Provisional Marine Brigade holding the defensive line at the Pusan Perimeter. To execute a flanking maneuver, General Douglas MacArthur called on Marine air and ground forces to make an amphibious landing at Inchon. The successful landing resulted in the collapse of North Korean lines and the pursuit of North Korean forces north near the Yalu River until the entrance of the People's Republic of China into the war. Chinese troops surrounded, surprised and overwhelmed the overextended and outnumbered American forces. X Corps, which included the 1st Marine Division and the Army's 7th Infantry Division, regrouped and inflicted heavy casualties during their fighting withdrawal to the coast, now known as the Battle of Chosin Reservoir. The fighting calmed after the Battle of the Chosin Reservoir, but late in March 1953 the relative quiet of the war was broken when the Chinese Army launched a massive offensive on three outposts manned by the 5th Marine Regiment. These outposts were codenamed "Reno", "Vegas", and "Carson". The campaign was collectively known as the Nevada Cities Campaign. There was brutal fighting on Reno hill, which was eventually captured by the Chinese. Although Reno was lost, the 5th Marines held both Vegas and Carson through the rest of the campaign. In this one campaign, the marines suffered approximately 1,000 casualties, while the Chinese suffered at least twice as many. Marines would continue a battle of attrition around the 38th Parallel until the 1953 armistice.[50] The Korean War saw the Corps expand from 75,000 regulars to a force of 261,000 Marines, mostly reservists. 30,544 Marines were killed or wounded during the war and 42 were awarded the Medal of Honor.[51]
The Marine Corps served an important role in the Vietnam War taking part in such battles as Da Nang, Hue City, Con Thien and Khe Sanh. Individuals from the USMC operated in the Northern I Corps Regions of South Vietnam. While there, they were constantly engaged in a guerrilla war against the National Front for the Liberation of South Vietnam (NLF) and an intermittent conventional war against the North Vietnamese Army (NVA). Portions of the Corps were responsible for the less-known Combined Action Program (CAP) that implemented unconventional techniques for counter-insurgency and worked as military advisors to the Republic of Vietnam Marine Corps. Marines were withdrawn in 1971, and returned briefly in 1975 to evacuate Saigon and attempt a rescue of the crew of the Mayagüez.[52]
Vietnam was the longest war for Marines; by its end, 13,091[53][54] had been killed in action, 51,392 had been wounded, and 57 Medals of Honor had been awarded.[55][56] Due to policies concerning rotation, more Marines were deployed for service during Vietnam than World War II.[57]
While recovering from Vietnam, the Corps hit a detrimental low point in its service history caused by courts-martial and non-judicial punishments related partially to increased unauthorized absences and desertions during the war. Overhauling of the Corps began in the late 1970s, discharging the most delinquent, and once quality of new recruits improved, the Corps focused on reforming the NCO Corps, a vital functioning part of its forces.[11]
After Vietnam, the Marines resumed their expeditionary role, participating in the 1980 Iran hostage rescue attempt Operation Eagle Claw, the invasion of Grenada (Operation Urgent Fury) and the invasion of Panama (Operation Just Cause). On 23 October 1983, the Marine headquarters building in Beirut, Lebanon, was bombed, causing the highest peacetime losses to the Corps in its history (220 Marines and 21 other service members were killed) and leading to the American withdrawal from the country. The year of 1990 saw Marines of the Joint Task Force Sharp Edge save thousands of lives by evacuating British, French and American nationals from the violence of the Liberian Civil War. During the Persian Gulf War (1990–1991), Marine task forces formed the initial core for Operation Desert Shield, while United States and Coalition troops mobilized, and later liberated Kuwait in Operation Desert Storm.[38] Marines participated in combat operations in Somalia (1992–1995) during Operations Restore Hope, Restore Hope II, and United Shield to provide humanitarian relief.[58]
Following the attacks on 11 September 2001, President George W. Bush announced the War on Terrorism. The stated objective of the Global War on Terror is "the defeat of Al-Qaeda, other terrorist groups and any nation that supports or harbors terrorists."[59] Since then, the Marine Corps, alongside other military and federal agencies, has engaged in global operations around the world in support of that mission.
In spring 2009, President Barack Obama's goal of reducing spending in the Defense Department was led by Secretary Robert Gates in a series of budget cuts which did not result in significant changes in the Corps' budget and programs, cutting only the VH-71 Kestrel and resetting the VXX program.[60][61][62] However, the National Commission on Fiscal Responsibility and Reform singled the Corps out for the brunt of a series of recommended cuts in late 2010.[63]
Marines and other American forces began staging in Pakistan and Uzbekistan on the border of Afghanistan as early as October 2001 in preparation for Operation Enduring Freedom.[64] The 15th and 26th Marine Expeditionary Units were the first conventional forces into Afghanistan in support of Operation Enduring Freedom in November 2001, and in December, the Marines seized Kandahar International Airport.[65] Since then, Marine battalions and squadrons have been rotating through, engaging Taliban and Al-Qaeda forces. Marines of the 24th Marine Expeditionary Unit flooded into the Taliban-held town of Garmsir on April 29, 2008, in Helmand Province, in the first major American operation in the region in years.[66] In June 2009, 7,000 Marines with the 2nd Marine Expeditionary Brigade deployed to Afghanistan in an effort to improve security,[67] and began Operation Strike of the Sword the next month.
In 2002, Combined Joint Task Force – Horn of Africa was stood up at Camp Lemonnier, Djibouti to provide regional security.[68] Despite transferring overall command to the Navy in 2006, the Marines continued to operate in the Horn of Africa into 2007.[69]
Most recently, the Marines have served prominently in the Iraq War. The I Marine Expeditionary Force, along with the Army's 3rd Infantry Division, spearheaded the 2003 invasion of Iraq.[70] The Marines left Iraq in the summer of 2003, but returned for occupation duty in the beginning of 2004. They were given responsibility for the Al Anbar Province, the large desert region to the west of Baghdad. During this occupation, the Marines spearheaded both assaults on the city of Fallujah in April (Operation Vigilant Resolve) and November 2004 (Operation Phantom Fury) and saw intense fighting in such places as Ramadi, Al-Qa'im and Hīt.[71] Their time in Iraq has courted controversy with the Haditha killings and the Hamdania incident.[64][72] The Anbar Awakening and 2007 surge reduced levels of violence. On March 1, 2009, President Obama announced an accelerated withdrawal at Camp Lejeune, promising all troops out by August 2010.[73] The Marine Corps officially ended its role in Iraq on January 23, 2010 when they handed over responsibility for Al Anbar Province to the United States Army.[73][74]
The Department of the Navy, led by the Secretary of the Navy, is the Federal Government Agency which both the Marine Corps and the Navy are organized within. The most senior Marine officer is the Commandant of the Marine Corps, responsible to the Secretary of the Navy for organizing, recruiting, training, and equipping the Marine Corps so that its forces are ready for deployment under the operational command of the Combatant Commanders. The Marine Corps is organized into four principal subdivisions: Headquarters Marine Corps (HQMC), the Operating Forces, the Supporting Establishment, and the Marine Forces Reserve (MARFORRES or USMCR).
The Operating Forces are further subdivided into three categories: Marine Corps Forces (MARFOR) assigned to unified commands, Marine Corps Security Forces guarding high-risk naval installations, and Marine Corps Security Guard detachments at American embassies. Under the "Forces for Unified Commands" memo, in accordance with the Unified Command Plan approved by the President, Marine Corps Forces are assigned to each of the Combatant Commands at the discretion of the Secretary of Defense. Since 1991, the Marine Corps has maintained component headquarters at each of the regional unified combatant commands.[75] Marine Corps Forces are further divided into Marine Forces Command (MARFORCOM) and Marine Forces Pacific (MARFORPAC), each headed by a Lieutenant General. MARFORCOM has operational control of the II Marine Expeditionary Force; MARFORPAC has operational control of the I Marine Expeditionary Force and III Marine Expeditionary Force.[32]
The Supporting Establishment includes Marine Corps Combat Development Command (MCCDC), Marine Corps Recruit Depots, Marine Corps Logistics Command, Marine bases and air stations, Recruiting Command, and the Marine Band.
In general, the Marine Corps shares many resources with the other branches of the United States military. However, the Corps has consistently sought to maintain its own identity with regards to mission, funding, and assets, while utilizing the support available from the larger branches. While the Marine Corps has far fewer installations both in the U.S. and worldwide than the other branches, many Army posts, Naval stations, and Air Force bases have a Marine presence.
The Marine Corps combat capabilities in some ways overlap those of the United States Army, the latter having historically viewed the Corps as encroaching on the Army's capabilities and competing for funding, missions, and renown. The attitude dates back to the founding of the Continental Marines, when General George Washington refused to allow the initial Marine battalions to be drawn from among his Continental Army. Most significantly, in the aftermath of World War II, Army efforts to restructure the American defense establishment included the dissolution of the Corps and the folding of its capabilities into the other services. Leading this movement were such prominent Army officers as General Dwight D. Eisenhower and Army Chief of Staff George C. Marshall.[49] With most of the 2000s spent in operations in Afghanistan and Iraq, Secretary of Defense Robert Gates has voiced concerns that the Marines are becoming a "second Army".[30]
Doctrinally, Marine Corps' focus is on being expeditionary and independent, and places emphasis on amphibious mobility and combined arms; these make it a much lighter force than many units of the Army. A larger percentage of the Marine Corps' personnel and assets are in the combat arms (infantry, artillery, armor, and close air support) than the Army. However, the Army maintains much larger and diverse combat arms (infantry, armor, artillery, special operations), ground transport, logistics, while the Marines have a more diverse aviation arm (which constitutes a larger percentage of forces), and is usually organic to the MAGTF. Marines operate as expeditionary units and are completely amphibious. The Marine Corps focus on standardized infantry units with the other arms in support roles as the "Every Marine's a rifleman" creed shows. This commitment to standardized units can be seen in the short-lived experiment of the Marine Raiders, which was controversial, while the U.S. Army's 75th Ranger Regiment, born in World War II, enjoys high prestige to this day. While the Army has a longer tradition of special operations forces, Marines joined the Special Operations Command with the establishment of MCSOCOM Detachment One in 2003.[76]
The Marines often leverage the Army's acquisition of ground equipment (as well as benefiting from Army research and development resources), training resources, and other support concepts. The majority of vehicles and weapons are shared with, modified, or inherited from Army programs.
Culturally, Marines and soldiers share most of the common U.S. military slang and terminology, but the Corps utilizes a large number of naval terms and traditions incompatible with the Army lifestyle, as well as their own unique vernacular. Many Marines regard their culture to have a deeper warrior tradition, with the ethos that every Marine is a rifleman and emphasis on cross-training and combat readiness despite actual job, be it infantry or otherwise. One source states Marines tend to decentralize and push leadership to lower levels, while fostering initiative to a greater degree.[77]
The Marine Corps' counterpart under the Department of the Navy is the United States Navy. As a result, the Navy and Marine Corps have a close relationship, more so than with other branches of the military. Whitepapers and promotional literature have commonly used the phrase "Navy-Marine Corps Team",[78][79] or refer to "the Naval Service". Both the Chief of Naval Operations (CNO) and Commandant of the Marine Corps report directly to the Secretary of the Navy.
Cooperation between the two services really begins with the training and instruction of Marines. The Corps receives a significant portion of its officers from the United States Naval Academy and Naval Reserve Officer Training Corps (NROTC). NROTC staff includes Marine instructors, while Marine drill instructors contribute to training of officers in the Navy's Officer Candidate School. Marine aviators are trained in the Naval Aviation training pipeline and are winged as Naval Aviators.
Training alongside each other is viewed as critical, as the Navy provides transport, logistical, and combat support to put Marine units into the fight, for example, the Maritime Prepositioning ships and naval gunfire support. Most Marine aviation assets ultimately derive from the Navy, with regard to acquisition, funding, and testing, and Navy aircraft carriers typically deploy with a Marine squadron alongside Navy squadrons. Marines do not recruit or train noncombatants such as chaplains or medical/dental personnel; naval personnel fill these roles. Some of these sailors, particularly Hospital Corpsmen and Religious Programs Specialists, generally wear Marine uniforms emblazoned with Navy insignia. Conversely, the Marine Corps is responsible for conducting land operations to support naval campaigns, including the seizure of naval and air bases. Both services operate a network security team in conjunction.
Marines and Sailors share many naval traditions, especially terminology and customs. Marine Corps Medal of Honor recipients wear the Navy variant of this and other awards;[26] and with few exceptions, the awards and badges of the Navy and Marine Corps are identical. Much of testing for new Marine Corps aircraft is done at NAS Patuxent River. The Navy's Blue Angels flight demonstration team is staffed by both Navy and Marine officers and enlisted men, and includes a Marine C-130 Hercules aircraft.[26]
In 2007, the Marine Corps joined with the Navy and Coast Guard to adopt a new maritime strategy called A Cooperative Strategy for 21st Century Seapower that raises the notion of prevention of war to the same philosophical level as the conduct of war.[80] This new strategy charts a course for the Navy, Coast Guard and Marine Corps to work collectively with each other and international partners to prevent regional crises, man-made or natural, from occurring or reacting quickly should one occur to avoid negative impacts to the United States.
The Marines have reduced the requirement for large amphibious ships from 42 to a bare minimum of 33 ships; the fleet currently stands at 29 ships and is likely to shrink in the future.[81]
While the majority of Marine aviation assets ultimately derive from the Navy, some support is drawn from the United States Air Force. The Marine Corps makes extensive use of the Air Mobility Command to airlift Marines and equipment.
The Air Force traditionally provides the Joint Force Air Component Commander who controls "sorties for air defense, and long range interdiction and reconnaissance" while the MAGTF commander retains control of the Marines' organic aviation assets.[82][83]
The Marines provide some ground training for Air Force ground personnel, but most is handled by the Army.[84]
Today, the basic framework for deployable Marine units is the Marine Air-Ground Task Force (MAGTF), a flexible structure of varying size. A MAGTF integrates a ground combat element (GCE), an aviation combat element (ACE), and a logistics combat element (LCE)[85] under a common command element (CE), capable of operating independently or as part of a larger coalition. The MAGTF structure reflects a strong tradition in the Corps towards self-sufficiency and a commitment to combined arms, both essential assets to an expeditionary force often called upon to act independently in discrete, time-sensitive situations. The history of the Marine Corps as well has led to a wariness of overreliance on its sister services, and towards joint operations in general.[11]
A MAGTF varies in size from the smallest, a Marine Expeditionary Unit (MEU), based around a reinforced infantry battalion and a composite squadron, up to the largest, a Marine Expeditionary Force (MEF), which ties together a Division, an Air Wing, and a Logistics Group under a MEF Headquarters Group. The seven MEUs constantly rotate between themselves and their attached components to maintain a high state of readiness. Each MEU is rated as capable of performing special operations.[86] The three MEFs contain the vast majority of active duty deployable forces.
Although the notion of a Marine special forces contribution to the United States Special Operations Command (USSOCOM) was considered as early as the founding of USSOCOM in the 1980s, it was resisted by the Marine Corps. Then-Commandant Paul X. Kelley expressed the popular belief that Marines should support Marines, and that the Corps should not fund a special warfare capability that would not support Marine operations.[87] However, much of the resistance from within the Corps dissipated when Marine leaders watched the Corps' 15th and 26th MEU(SOC)s "sit on the sidelines" during the very early stages of Operation Enduring Freedom while other special operations units actively engaged in operations in Afghanistan.[76] After a three-year development period, the Corps agreed in 2006 to supply a 2,500-strong unit, Marine Forces Special Operations Command (MARSOC), which would answer directly to USSOCOM.[88]
As stated above, the Commandant of the Marine Corps is the highest-ranking officer of the Marine Corps; though he may not be the senior officer by time in grade and/or position of office. He is both the symbolic and functional head of the Corps, and holds a position of very high esteem among Marines. The Commandant has the U.S. Code Title 10 responsibility to man, train, and equip the Marine Corps. He does not serve as a direct battlefield commander. The Commandant is a member of the Joint Chiefs of Staff, and reports to the Secretary of the Navy.[89]
The Assistant Commandant of the Marine Corps acts as a deputy to the Commandant. The Sergeant Major of the Marine Corps is the senior enlisted Marine, and acts as an advisor to the Commandant. Headquarters Marine Corps comprises the rest of the Commandant's counsel and staff, with deputy Commandants that oversee various aspects of the Corps assets and capabilities.
The current and 35th Commandant is James F. Amos, who assumed the position on 22 October 2010 and vacated the office of Assistant Commandant.[90] The 32nd and current Assistant Commandant is Joseph F. Dunford, Jr.,[91][92][93] while the 17th and current Sergeant Major is Micheal P. Barrett. Other Marine generals may be senior to the Commandant or Assistant Commandant in terms of time in grade and/or billet.
As in the rest of the United States military, Marine Corps ranks fall into one of three categories: commissioned officer, warrant officer, and enlisted, in decreasing order of authority (excluding the Air Force, which does not currently appoint warrant officers). To standardize compensation, each rank is assigned a pay grade.[94]
Commissioned officers are distinguished from other officers by their commission, which is the formal written authority, issued in the name of the President of the United States, that confers the rank and authority of a Marine officer. Commissioned officers carry the "special trust and confidence" of the President of the United States.[22]
| U.S. DoD Pay Grade | O-1 | O-2 | O-3 | O-4 | O-5 | O-6 | O-7 | O-8 | O-9 | O-10 |
|---|---|---|---|---|---|---|---|---|---|---|
| Insignia | ||||||||||
| Title | Second Lieutenant | First Lieutenant | Captain | Major | Lieutenant Colonel | Colonel | Brigadier General | Major General | Lieutenant General | General |
| Abbreviation | 2ndLt | 1stLt | Capt | Maj | LtCol | Col | BGen | MajGen | LtGen | Gen |
| NATO Code | OF-1 | OF-2 | OF-3 | OF-4 | OF-5 | OF-6 | OF-7 | OF-8 | OF-9 | |
Warrant officers are primarily former enlisted experts in a specific specialized field and provide leadership generally only within that speciality.
| U.S. DoD Pay Grade | W-1 | W-2 | W-3 | W-4 | W-5 |
|---|---|---|---|---|---|
| Insignia | |||||
| Title | Warrant Officer 1 | Chief Warrant Officer 2 | Chief Warrant Officer 3 | Chief Warrant Officer 4 | Chief Warrant Officer 5 |
| Abbreviation | WO1 | CWO2 | CWO3 | CWO4 | CWO5 |
| NATO Code | WO-1 | WO-2 | WO-3 | WO-4 | WO-5 |
Enlisted Marines in the pay grades E-1 to E-3 make up the bulk of the Corps' ranks, usually referred to simply as "Marines". Although they do not technically hold leadership ranks, the Corps' ethos stresses leadership among all Marines, and junior Marines are often assigned responsibility normally reserved for superiors. Those in the pay grades of E-4 and E-5 are non-commissioned officers (NCOs). They primarily supervise junior Marines and act as a vital link with the higher command structure, ensuring that orders are carried out correctly. Marines E-6 and higher are Staff Non-Commissioned Officers (SNCOs), charged with supervising NCOs and acting as enlisted advisors to the command.
The E-8 and E-9 levels each have two ranks per pay grade, each with different responsibilities. The First Sergeant and Sergeant Major ranks are command-oriented, serving as the senior enlisted Marines in a unit, charged to assist the commanding officer in matters of discipline, administration and the morale and welfare of the unit. Master Sergeants and Master Gunnery Sergeants provide technical leadership as occupational specialists in their specific MOS.
The Sergeant Major of the Marine Corps is a unique rank and billet conferred on the senior enlisted Marine of the entire Marine Corps, personally selected by the Commandant.
Different forms of address can be found at United States Marine Corps rank insignia and List of United States Marine Corps acronyms and expressions.
| U.S. DoD Pay grade | E-1 | E-2 | E-3 | E-4 | E-5 | E-6 | E-7 | E-8 | E-9 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Insignia | No insignia | ||||||||||||
| Title | Private | Private First Class |
Lance Corporal |
Corporal | Sergeant | Staff Sergeant |
Gunnery Sergeant |
Master Sergeant |
First Sergeant |
Master Gunnery Sergeant |
Sergeant Major |
Sergeant Major of the Marine Corps |
|
| Abbreviation | Pvt | PFC | LCpl | Cpl | Sgt | SSgt | GySgt | MSgt | 1stSgt | MGySgt | SgtMaj | SgtMajMarCor | |
| NATO Code | OR-1 | OR-2 | OR-3 | OR-4 | OR-5 | OR-6 | OR-7 | OR-8 | OR-9 | ||||
The Military Occupational Specialty (MOS) is a system of job classification. Using a four digit code, it designates what field and specific occupation a Marine performs. Segregated between officer and enlisted, the MOS determines the staffing of a unit. Some MOSs change with rank to reflect supervisory positions, others are secondary and represent a temporary assignment outside of a Marine's normal duties or special skill.
Every year, over 2,000 new Marine officers are commissioned, and 38,000 recruits accepted and trained.[32] All new Marines, enlisted or officer, are recruited by the Marine Corps Recruiting Command.[95]
Commissioned officers are commissioned mainly through one of three sources: Naval Reserve Officer Training Corps (NROTC), Officer Candidates School (OCS), or the United States Naval Academy (USNA). Following commissioning, all Marine commissioned officers, regardless of accession route or further training requirements, attend The Basic School (TBS) at Marine Corps Base Quantico, Virginia. At TBS, second lieutenants, warrant officers, and selected foreign officers learn the art of infantry and combined arms warfare.[22]
Enlisted Marines attend recruit training, known as boot camp, at either Marine Corps Recruit Depot San Diego or Marine Corps Recruit Depot Parris Island. Historically, the Mississippi River served as the dividing line which delineated who would be trained where, while more recently, a district system has ensured a more even distribution of male recruits between the two MCRD facilities. Females attend only the Parris Island depot as part of the segregated Fourth Recruit Training Battalion. All recruits must pass a fitness test to start training; those who fail receive individualized attention and training until the minimum standards are reached. Marine recruit training is the longest among the American military services; it is 13 weeks long, compared to the Army's 10 weeks or the Navy's 9 weeks.[96]
Following recruit training, enlisted Marines then attend School of Infantry training at Camp Geiger or Camp Pendleton. Infantry Marines begin their combat training, which varies in length, immediately with the Infantry Training Battalion (ITB). Marines in all other MOSs other than infantry train for 29 days in Marine Combat Training (MCT), learning common infantry skills, before continuing on to their MOS schools which vary in length.[97]
The Marine Corps has the most stable and most recognizable uniforms in the American military; the Blue Dress dates back to the early 19th century[32] and the service uniform to the early 20th century. Marines' uniforms are distinct in their simplicity; Marines do not wear unit patches or United States flags on any of their uniforms, nor name tags on their service and formal uniforms. Only a handful of skills (parachutist, air crew, explosive ordnance disposal, etc.) warrant distinguishing badges, and rank insignia is not worn on uniform headgear (with the exception of an officer's garrison service cover). While other servicemembers commonly identify with a sub-group as much as or more than their service (Ranger, submariner, aircrew, etc.), Marine uniforms do not reflect such division.
Marines have three main uniforms: Dress, Service, and Utility. The Marine Corps Dress uniform is the most elaborate, worn for formal or ceremonial occasions. There are three different forms of the Dress uniform, the most common being the Blue Dress Uniform, called "Dress Blues" or simply "Blues". It is most often seen in recruiting advertisements and is equivalent to black tie. There is a "Blue-White" Dress for summer, and Evening Dress for formal (white tie) occasions. Versions with a khaki shirt in lieu of the coat are worn as a daily working uniform by Marine recruiters.[98]
The Service Uniform was once the prescribed daily work attire in garrison; however, it has been largely superseded in this role by the utility uniform. Consisting of olive green and khaki colors, it is commonly referred to as "Greens". It is roughly equivalent in function and composition to a business suit.[98]
The Utility Uniform, currently the Marine Corps Combat Utility Uniform, is a camouflage uniform intended for wear in the field or for dirty work in garrison, though it has now been standardized for regular duty. It is rendered in a distinctive MARPAT pixelated camouflage (sometimes referred to as digitals or digies) that breaks up the wearer's shape, and serves to distinguish Marine uniforms from those of other services. In garrison, the woodland uniform is worn in winter, and the desert uniform is worn in summer.[99] Marines consider the utilities a working uniform and do not permit their wear off-base, except in transit to and from their place of duty and in the event of an emergency. This, too, distinguishes them from other services, which have less stringent restrictions.[98]
As in any military organization, the official and unofficial traditions of the Marine Corps serve to reinforce camaraderie and set the service apart from others. The Corps' embrace of its rich culture and history is cited as a reason for its high esprit de corps.[22]
The Marines' Hymn dates back to the 19th century and is the oldest official song in the United States armed forces. The Marine motto Semper Fidelis means always faithful in Latin, often appearing as Semper Fi; also the name of the official march of the Corps, composed by John Phillip Sousa. The mottos "Fortitudine" (With Fortitude); By Sea and by Land, a translation of the Royal Marines' Per Mare, Per Terram; and To the Shores of Tripoli were used until 1868.[100] The Marine Corps emblem is the Eagle, Globe, and Anchor, sometimes abbreviated "EGA", adopted in 1868.[101] The Marine Corps seal includes the emblem, also is found on the flag of the United States Marine Corps, and establishes scarlet and gold as the official colors.[102]
Two styles of swords are worn by Marines: the officers' Mameluke Sword, similar to the Persian shamshir presented to Lt. Presley O'Bannon after the Battle of Derna, and the Marine NCO sword.[32] The Marine Corps Birthday is celebrated every year on 10 November in a cake-cutting ceremony where the first slice of cake is given to the oldest Marine present, who in turn hands it off to the youngest Marine present. The celebration includes a reading of Marine Corps Order 47, Commandant Lejeune's Birthday Message.[103] Close Order Drill is heavily emphasized early on in a Marine's initial training, incorporated into most formal events, and is used to teach discipline by instilling habits of precision and automatic response to orders, increase the confidence of junior officers and noncommissioned officers through the exercise of command and give Marines an opportunity to handle individual weapons.[104]
An important part of the Marine Corps culture is the traditional seafaring naval terminology derived from its history with the Navy.
Marines have several generic nicknames:
Some other unofficial traditions include mottos and exclamations:
The ethos that "Once a Marine, Always a Marine" has led to the objection to the use of the term "ex-Marine", leading to myriad forms of address for those no longer on active duty:[49]
In 2001, the Marine Corps initiated an internally designed martial arts program, called Marine Corps Martial Arts Program (MCMAP). Due to an expectation that urban and police-type peacekeeping missions would become more common in the 21st century, placing Marines in even closer contact with unarmed civilians, MCMAP was implemented to provide Marines with a larger and more versatile set of less-than-lethal options for controlling hostile, but unarmed individuals. It is a stated aim of the program to instill and maintain the "Warrior Ethos" within Marines.[114] The Marine Corps Martial Arts program is an eclectic mix of different styles of martial arts melded together. MCMAP consists of open-palm punches and kicks from Taekwondo and Karate, opponent weight transfer from Jujitsu, ground grappling involving joint locking techniques and chokes from Brazilian Jiu-Jitsu, and a mix of knife and baton/stick fighting derived from Eskrima, and elbow strikes and kick boxing from Muay Thai. Marines begin MCMAP training in boot camp, where they will earn the first of five available belts.[115]
The basic infantry weapon of the Marine Corps is the M16 assault rifle family, with a majority of Marines being equipped with the M16A2 or M16A4 service rifles (the M16A2 is being phased out). The M4 carbine, a compact variant of the M16, has been issued.[116] The standard side arm is the M9A1 pistol. Suppressive fire is provided by the M249 SAW and M240 machine guns, at the squad and company levels respectively. In addition, indirect fire is provided by the M203 grenade launcher in fireteams, M224 60 mm mortar in companies, and M252 81 mm mortar in battalions. The M2 .50 caliber heavy machine gun and MK19 automatic grenade launcher (40 mm) are available for use by dismounted infantry, though they are more commonly vehicle-mounted. Precision firepower is provided by the M40 series, and the Barrett M107, while designated marksmen use the DMR (being replaced by the M39 EMR), and the SAM-R.[117]
The Marine Corps utilizes a variety of direct-fire rockets and missiles to provide infantry with an offensive and defensive anti-armor capability. The SMAW and AT4 are unguided rockets that can destroy armor and fixed defenses (e.g., bunkers) at ranges up to 500 meters. The Predator SRAW, FGM-148 Javelin and BGM-71 TOW are anti-tank guided missiles. The Javelin can utilize top-attack profiles to avoid heavy frontal armor. The Predator is a short-range fire-and-forget weapon; the Javelin and TOW are heavier missiles effective past 2,000 meters that give infantry an offensive capability against armor.[118]
The Corps operates the same HMMWV and M1A1 Abrams tank as does the Army. However, for its specific needs, the Corps uses a number of unique vehicles. The LAV-25 is a dedicated wheeled armored personnel carrier, similar to the Army's Stryker vehicle, used to provide strategic mobility.[119] Amphibious capability is provided by the AAV-7A1 Amphibious Assault Vehicle, an armored tracked vehicle that doubles as an armored personnel carrier, due to be replaced by the Expeditionary Fighting Vehicle, a faster vehicle with superior armor and weaponry. The threat of land mines and improvised explosive devices in Iraq and Afghanistan has seen the Corps begin purchasing heavy armored vehicles that can better withstand the effects of these weapons as part of the Mine Resistant Ambush Protected vehicle program.[120] The Marine Corps has ordered 1,960 MRAP vehicles, hoping to use them to replace HMMWVs and some Medium Tactical Vehicle Replacements on patrols in Iraq.[121] The Logistics Vehicle System Replacement began replacing the Logistics Vehicle System in 2009.[122]
Prior to 2005, the Marines operated exclusively tube artillery—the M198 155 mm howitzer, now being replaced by the M777 155 mm howitzer. However, the Corps has expanded its artillery composition to include the High Mobility Artillery Rocket System (HIMARS), a truck-mounted rocket artillery system. Both are capable of firing guided munitions.[123]
The organic aviation capability of the Marine Corps is essential to its mission. The Corps operates both rotary-wing and fixed-wing aircraft mainly to provide assault support and close air support to its ground forces. However, other aircraft types are also used in a variety of support and special-purpose roles.
The light-attack and light transport capabilities are provided by AH-1W SuperCobras and UH-1N Hueys, slated to be replaced by the Bell AH-1Z Viper and the Bell UH-1Y Venom.[124] Medium-lift squadrons flying the CH-46E Sea Knight and CH-53D Sea Stallion helicopters are in the process of converting to the MV-22 Osprey, a tiltrotor with superior range and speed. Heavy-lift squadrons are equipped with the CH-53E Super Stallion helicopter, eventually to be replaced with the upgraded CH-53K.[125]
Marine attack squadrons fly the AV-8B Harrier II; while the fighter/attack mission is handled by the single-seat and dual-seat versions of the F/A-18 Hornet strike-fighter aircraft. The AV-8B is a V/STOL aircraft that can operate from amphibious assault ships, land air bases and short, expeditionary airfields, while the F/A-18 can only be flown from land or aircraft carriers. Both are slated to be replaced by 340 of the STOVL B version of the F-35 Lightning II, beginning training operations in 2008,[126] and 80 of the carrier F-35C versions for deployment with Navy carrier air wings.[127][128][129]
In addition, the Corps operates its own organic aerial refueling and electronic warfare (EW) assets in the form of the KC-130 Hercules and EA-6B Prowler, respectively. The Hercules doubles as a ground refueller and tactical-airlift transport aircraft. The Prowler is one of only two active tactical electronic warfare aircraft left in the United States inventory, and has been labeled a "national asset"; frequently borrowed along with Navy Prowlers and EA-18G Growlers to assist in any American combat action since the retirement of the Air Force's own EW aircraft.[130]
The Marines operate unmanned aerial vehicles: the RQ-7 Shadow and Scan Eagle for tactical reconnaissance.[131][132]
Marine Fighter Training Squadron 401 (VMFT-401), operates F-5E, F-5F and F-5N Tiger II aircraft in support of air combat adversary (aggressor) training. Marine Helicopter Squadron One (HMX-1) operates the VH-3D Sea King and VH-60N Whitehawk helicopters in the VIP transport role, most notably Marine One, but are due to be replaced. A single Marine Corps C-130 Hercules aircraft "Fat Albert" is used to support the U.S. Navy's flight demonstration team, the "Blue Angels".
The Marine Corps operates many major bases, 14 of which host operating forces, several support and training installations, as well as satellite facilities.[133] Marine Corps' bases are concentrated around the locations of the Marine Expeditionary Forces, though reserve units are scattered throughout the United States. The principal bases are Camp Pendleton on the West Coast, home to I MEF; Camp Lejeune on the East Coast, home to II MEF; and Camp Butler in Okinawa, Japan, home to III MEF.
Other important bases include air stations, recruit depots, logistics bases, and training commands. Marine Corps Air Ground Combat Center Twentynine Palms in California is the Marine Corps' largest base and home to the Corps' most complex, combined-arms, live-fire training. Marine Corps Base Quantico in Virginia is home to Marine Corps Combat Development Command, and nicknamed the "Crossroads of the Marine Corps".[134][135] Marines operate detachments at many installations owned by other branches, to better share resources, such as specialty schools. Marines are also present at, and operate many, forward bases during expeditionary operations. Finally, Marines operate a presence in the National Capital Region, with Headquarters Marine Corps scattered amongst the Pentagon, Henderson Hall, Washington Navy Yard, and Marine Barracks, Washington, D.C.
On 17 November 2011 President Obama on his first visit to Australia announced that a Marine Expeditionary Unit reinforced company would be based in Darwin Australia on a rotational basis of six months from mid-2012, building up over time a full US Marine Corps Marine Expeditionary Unit of approximately 2,500 personnel. This will be the first time since World War Two that US Marines have been based in Australia.[136][137]
This article incorporates public domain material from websites or documents of the United States Marine Corps.
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