Car bomb

For other uses, see Car bomb (disambiguation).
The result of a car bombing in Iraq.

A car bomb, or truck bomb, also known as a vehicle-borne improvised explosive device (VBIED),[1] is an improvised explosive device placed inside a car or other vehicle and detonated.

It is commonly used as a weapon of assassination, terrorism or guerrilla warfare, to kill the occupants of the vehicle, people near the blast site, or to damage buildings or other property. Car bombs act as their own delivery mechanisms and can carry a relatively large amount of explosives without attracting suspicion; in larger vehicles and trucks, weights of at least 7,000 pounds (3,200 kg) have been used,[1] for example, in the Oklahoma City bombing. Car bombs are activated in a variety of ways; including opening the vehicle's doors, starting the engine, depressing the accelerator or brake pedals or simply lighting a fuse or setting a timing device.[2] The gasoline in the vehicle's fuel tank may make the explosion of the bomb more powerful by dispersing and igniting the fuel.

Use as weapon

Car bomb in Iraq, made up of a number of artillery shells concealed in the back of a pickup truck.

Car bombs are effective weapons as they are an easy way to transport a large amount of explosives to the intended target. A car bomb also produces copious shrapnel, or flying debris, and secondary damage to bystanders and buildings. In recent years, car bombs have become widely used by suicide bombers.

Provisional Irish Republican Army (PIRA) Chief of Staff Seán Mac Stíofáin defines the car bomb as both a tactical and a strategic guerrilla weapon. Strategically, it disrupts the ability of the enemy government to administer the country, and hits simultaneously at the core of its economic structure by means of massive destruction. From a tactical point of view, it ties down a large number of security forces and troops around the main urban areas of the region in conflict.[3]

Countermeasures

Defending against a car bomb involves keeping vehicles at a distance from vulnerable targets by using roadblocks and checkpoints, Jersey barriers, concrete blocks or bollards, metal barriers, or by hardening buildings to withstand an explosion. Since the height of the Provisional Irish Republican Army (PIRA) campaign, the entrance to Downing Street has been closed, preventing the general public from getting near Number 10. Where major public roads pass near buildings, road closures may be the only option (thus, for instance, in Washington, D.C. the portion of Pennsylvania Avenue immediately in front of the White House is closed to traffic). Historically these tactics have encouraged potential bombers to target "soft" or unprotected targets, such as markets.[4]

Operation

TSA officers view the post-blast remains of a vehicle after an explosive was detonated inside it during training.

Car bombs and detonators function in a diverse manner of ways and there are numerous variables in the operation and placement of the bomb within the vehicle. Earlier and less advanced car bombs were often wired to the car's ignition system, but this practice is now considered more laborious and less effective than other more recent methods, as it required a greater amount of work for a system that could often be quite easily defused. While it is more common nowadays for car bombs to be fixed magnetically to the underside of the car, underneath the passenger/driver's seat, or inside of the mudguard, detonators triggered by the opening of the vehicle door or by pressure applied to the brakes or accelerating pedals are also used.[2]

Bombs operating by the former method of fixation to the underside of the car more often than not make use of a device called a tilt fuse. A small tube designed of glass or plastic, the tilt fuse is not dissimilar to a mercury switch or medical tablet tube. One end of the fuse will be filled with mercury, while the other open end is wired with the ends of an open circuit to an electrical firing system. Naturally, when the tilt fuse moves or is jerked, the supply of mercury will flow to the top of the tube and close the circuit. Thus, as the vehicle goes through the regular bumping and dipping that comes with driving over a terrain, the circuit is completed and the bomb or explosive is allowed to function.[2]

As a safety mechanism to protect the bomber, the placer of the bomb may rig a timing device incorporated with the circuit to activate the circuit only after a certain time period, therefore ensuring the bomber will not accidentally activate the bomb before he or she is able to get clear of the blast radius.[2]

While many car bombs are disguised as ordinary vehicles,[5]some that are used against military forces have Improvised vehicle armour attached to prevent the driver from being shot when attacking a fortified outpost.[6]

History

Car bombs can be seen as the remote descendants of the 16th Century Hellburners, explosive-loaded ships which were used to deadly effect by the besieged Dutch forces in Antwerp against the besieging Spanish. Though using a less refined technology, the basic principle of the Hellburner is similar to that of the car bomb.

Prior to the twentieth century, bombs planted in horse carts had been used in assassination plots, notably in the unsuccessful "machine infernale" attempt to kill Napoleon on 24 December 1800.

The first car bomb may have been the one used for the assassination attempt on Ottoman Sultan Abdul Hamid II in 1905 in Istanbul by Armenian separatists, in the command of Papken Suni belonging to the Armenian Revolutionary Federation.

The first possible suicide car bombing (and possibly the first suicide bombing) was the Bath School bombings of 1927, where 45, including the bomber, were killed and half of a school was blown up.

In the past, groups that used car bombs have included:

Vietcong terror car bombing aftermath scene in Saigon, 1965.

Mass-casualty car bombing, and especially suicide car bombing, is currently a predominantly Middle Eastern phenomenon. The tactic was first introduced to the region by the Stern gang, who used it extensively against Palestinian and British military targets; it was subsequently taken up by Palestinian bombers as well.[11] The tactic was widely used in the Lebanese Civil War by the Islamic fundamentalist group Hezbollah. A notable suicide car bombing was the 1983 Beirut barracks bombing, when two simultaneous attacks killed 241 U.S. Marines and 58 French military personnel. The perpetrator of these attacks has never been positively confirmed. In the Lebanese civil war, an estimated 3,641 car bombs were detonated.[12]

Groups that still use car bombs include:

A 2005 car bombing in Iraq, in which a second car bomb was detonated while US forces were investigating the scene of an earlier such blast, resulting in 18 casualties.

See also

Notes

  1. 1 2 "Vehicle Borne IEDs (VBIEDs)". Global Security. Retrieved 3 August 2008.
  2. 1 2 3 4 Wilkinson, Paul; Christop Harman (1993). Technology and terrorism. Routledge. ISBN 0-7146-4552-4.
  3. McStiofáin, Seán (1975). Revolutionary in Ireland. G. Cremonesi. p. 243.
  4. See Davis.
  5. Olson, Dean (2012). Tactical Counterterrorism the Law Enforcement Manual of Terrorism Prevention. Springfield: Charles C Thomas. ISBN 9780398087234. p.166
  6. "Take a look inside an armoured Islamic State car bomb". ABC News.
  7. Car bomb kills Northern Ireland lawyer BBC News, 15 March 1999.
  8. Taylor, Peter (1999). Loyalists. Bloomsbury Publishing. pp. 125–126. ISBN 0-7475-4519-7.
  9. Elmundo.es (Spanish)
  10. Davis, ch. 13, "Car-Bomb University"
  11. Davis, chapter 4, "Oranges for Jaffa".
  12. The Atlas Group and Walid Raad - Cornerhouse
  13. "200lb of explosives in Derry car bomb". BBC News.
  14. Daniel Swift (4 May 2007). "Explosive reading". Review of: Buda’s Wagon: A Brief History of the Car Bomb. Financial Times. Retrieved 6 May 2010.
  15. Ellingwood, Ken (21 October 2010). "Mexico arrests man alleged to have directed fatal Juarez car bomb attack". Los Angeles Times. Retrieved 6 May 2012.
  16. "Car bomb explosion followed by shootout in Nuevo Laredo". KGBT-TV. 24 April 2012. Retrieved 6 May 2012.
  17. "Reafirma El Chapo presencia en Tamaulipas con coche bomba". Blog del Narco (in Spanish). 24 April 2012. Retrieved 6 May 2012.
  18. "Suman 23 ejecutados en Nuevo Laredo, entre decapitados y colgados". Proceso (in Spanish). 4 May 2012. Retrieved 6 May 2012.

References

External links

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