Battle of Hastenbeck

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Battle of Hastenbeck
Part of the Seven Years' War
Date July 26, 1757 Location near Hastenbeck, southeast of Hamelin in Saxony Result French victory, leading to the defeat of the Electorate of Hanover
Belligerents
Electorate of Hanover Great Britain Hesse-Kassel Brunswick	[1] France
Commanders
William Augustus, Duke of Cumberland	Louis Charles d'Estrées Prince de Soubise
Strength
35,000 infantry and cavalry 28 heavy guns and mortars	50,000 infantry 10,000 cavalry 68 heavy guns and mortars
Casualties and losses
1,300	2,600

In the Battle of Hastenbeck (July 26, 1757) the allied forces of Hanover, Hesse and Brunswick were defeated by the French army near Hamelin in Saxony.

[edit] Prelude

The French, who were allied with Austria, Russia, Sweden and Saxony during the Seven Years' War, invaded Germany in April 1757 with two armies, altogether about 100,000 soldiers. The French hoped to draw the attention of Prussia, which was allied with England and Hanover, away from the Bohemian theatre where Prussia and Austria fought several battles (Battle of Lobositz, Battle of Prague, Battle of Kolin).

One of the two French armies under command of Prince de Soubise marched through central Germany. They joined the so called "Reichsarmee" commanded by Prinz von Hildburghausen. This coalition army later met a Prussian army at the Battle of Rossbach on November 5, 1757 with disaster.

The other French army commanded by Marshal Louis Charles d'Estrées consisted of about 50,000 infantry, 10,000 cavalry and 68 cannons. The army advanced towards the Electorate of Hanover. Prussia was heavily involved with its enemies Austria, Russia and Sweden and therefore was not able to help on the western front. This task was given to the Hanoverian Army of Observation which only had little support from Prussia, namely six Prussian battalions. The main part of the "Hanoverian Army of Observation" came from Hanover (about 60%) and Hesse (about 25%), smaller additional forces from Brunswick and Prussia. The total strength of the Hanoverian Army of Observation was about 40,000 men (note: the sources differ here between 36,000 and 47,000). The army was commanded by William Augustus the Duke of Cumberland who was a son of King George II of Great Britain.

The Weser and the fortresses at Hamelin, Minden, Nienburg and Bremen formed a natural defense line.

Hanover refused to defend the river Rhine which is farther to the west than the river Weser. This left the Prussians no choice than to abandon their fortress in Wesel and to give up the line of the Lippe river in April. Cumberland's main objective was preventing the occupation of Hanover. He first concentrated his army at Bielefeld, and then after a brief stand in Brackwede, Cumberland decided to cross the Weser south of Minden. The main idea was to use the Weser as a natural defense line and to make it impossible for the French troops to cross the river. The Duke of Cumberland deployed his main forces at Hamelin which is a couple of kilometers to the northwest from Hastenbeck and left the Prussian battalions as garrison forces to Minden. He also deployed small patrols all along the Weser. Meanwhile the French sent a detachment to the North to capture Emden on July 3, which was an important access point for Britain to Europe. Later they sent another detachment to the south which took Kassel on July 15.

During the night of July 7 a strong French advance guard crossed the river Weser close to the town Beverungen. While the river Weser normally cannot be easily forded, during the summer the water level drops down to a low of 80 cm (~3 feet) between Münden and Hameln, making it possible for infantry and cavalry to cross. The French advance troops then marched to the north and established a bridgehead at Höxter. The main army crossed the river Weser on July 16 leaving the Duke of Cumberland no choice than to deploy his troops south of Hamelin and to engage d'Estrées. The Prussian battalions were then recalled by Frederick the Great, after losing the Battle of Kolin against Austria.

[edit] The battle

The armies finally met on the morning of July 25 at the village of Hastenbeck. The commander of the French right flank, general François de Chevert, was ordered to engage Hanoverian troops at the village of Voremberg, but failed to drive them out. As the French left under general Duc de Broglie was still crossing the Weser near Hameln, d'Estrées decided to postpone the battle until all his troops were up.

The next day saw the Hanoverian army holding on a line from Hamelin to Voremberg. Their right flank was anchored on the Hamel river and the Hastenbach creek. The center of the Hanoverian front was deployed north of the town of Hastenbeck and an artillery battery was situated on high ground behind the town. The Hanoverian left consisted of two entrenched batteries with grenadier battalions protecting the guns. The left flank was anchored on the Obensburg. Cumberland made the mistake in assuming the hill to be impassable to formed troops and deployed a meagre three Jäger companies on its summit, effectively leaving the Hanoverian left flank in the air.

General Chevert was ordered to flank the Hanoverian position with four brigades containing troops from Picardy, la Marine, Navarre and Eu. At 09.00 hours this force advanced toward the Obensburg in three battalion columns and quickly overwhelmed the Jägers. The Duke of Cumberland, seeing his position threatened from the rear, ordered his reserves and the grenadier battalions protecting the guns to recapture the Obensburg. The use of these grenadier battalions in the counterattack on the Obensburg meant they were no longer available in the center when the main French attacks went in against the Hanoverian center.

The French main attack consisted out of general d'Armentieres' attack against Voremberg with five brigades of infantry plus four regiments of dismounted dragoons. At the same time, the French center assaulted the battery immediately north of it. The Hanoverian grand battery was able to repulse several of the French attacks but eventually the guns were overrun. When the Hanoverian reserve infantry arrived on the Obensburg, they were able to turn the tide momentarily, but as the Duke of Cumberland had begun to withdraw his army, they were unable to maintain the now isolated position for long.

[edit] Outcome

The Battle of Hastenbeck is one of the most curious battles in history, since both commanders-in-chief thought that they lost the battle and were already starting to withdraw from the battlefield. The battle eventually resulted in the Convention of Klosterzeven and the occupation of Hanover. During the battle Hastenbeck was almost completely destroyed, only the church, the manse and the farm house were not destroyed.

[edit] References

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