Prussian Regiment (France)

The Prussian Regiment (Régiment de Prusse) was a foreign regiment formed in late 1806 from Prussian prisoners of war, used by the French Army in the Peninsular War from 1808 until 1812.

Formation
The Prussian Regiment was ordered formed on 13 November 1806 by means of a letter from Marshal Berthier on behalf of Napoleon I to Prince Isenburg. Isenburg, a colonel in the French Army was instructed that Napoleon wanted him to form a foreign regiment from Prussians. Napoleon instructed Isenburg to select officers for the new regiment from Prussian prisoners of war, while non-commissioned soldiers were to be selected from Prussians who had deserted the Prussian Army. The Regiment was formed as an infantry regiment with three battalions; however, the exact organization is not known or if it was formed as a light infantry regiment or a line infantry regiment.

Formation of the Prussian Regiment took place at Leipzig between November and December 1806. The recruiting poster for the Prussian Regiment was drafted by Isenburg and read: Valiant warriors, rally to the standards of Napoleon the Great and follow his steps which will guide you to victory and immortal renown. The Prussian Regiment was quickly formed and Isenburg promoted as a result to Brigade General (Général de Brigade) on 16 December.

Operational history
After the Prussian Regiment was formed it was transferred from Germany to France for garrison duties. Although desertion was a problem, on 19 November 1807 the Prussian Regiment still had a strength of 2,700 men. In early 1808 the 1st battalion of Prussian Regiment was given an active role and assigned to the 3rd Division of Marshal Moncey’s Coast Observation Corps in Spain. The 1st battalion took part in the suppression of the revolt in Madrid on 2 May 1808. After taking part in the French offensive in Spain at Valencia in June, the 1st battalion was assigned to garrison duty at Vitoria.

Meanwhile the 2nd and 3rd battalions been stationed in Flushing, Netherlands. In the summer of 1808 the British attacked the town of Flushing, although both battalions defended the town, both were captured and the soldiers become British prisoners of war. The 2nd battalion of Prussian Regiment was ordered re-formed from new recruits and the regimental depot battalion.

In early 1810 a new 2nd battalion was ready and was sent to Spain. The new battalion; however, suffered from high desertion, many of the deserters joined the guerrillas fighting against the French in Spain. Early in 1810 the 2nd battalion of the Prussian Regiment was assigned to General Junot’s VIII Crops fighting in Portugal. On 21 April the battalion captured the town of Astorga in heavy fighting.

On 5 August Napoleon order that both the 1st and 2nd battalions of the Prussian Regiment be combined and fight together. The Prussian Regiment served in Portugal from 1810 to 1811, during this time the regiment helped protect French artillery and baggage from being captured in a surprise attack. The Prussian Regiment also fought at the Battle of Bussaco. In the spring of 1811 the Prussian Regiment was assigned to garrison duty in Spain at Ciudad Rodrigo and fought an action near there on 18 June 1811. From the summer of 1811 onwards the Prussian Regiment remained on garrison duty. On 3 August the Prussian Regiment was renamed the 4th Foreign Regiment (4éme Régiment Etranger). The regiment performed poorly during a British attack on a bridge near Almaraz, guarded by the regiment on 18 May 1812. During the attack the commander of the regiment left his post and the regiment became disorganized, abandoning the bridge. The 1st battalion lost its standard, the regiment never fired a shot during the engagement. The Prussian Regiment stayed on garrison duty in Spain during 1813. The Prussian Regiment was ordered to Lille in France, as Napoleon considered using the regiment to help make up for losses suffered in the Russian campaign, but decided against it. The Prussian Regiment did, however, take part in the defence of Holland at Woerden on 24 November 1813. The next day the unit was disbanded.

Disbandment
On 25 November 1813 the Prussian Regiment was disbanded by decree, trusted men was assigned to the 3rd Foreign Regiment (3éme Régiment Etranger) while the others were assigned to a Pioneer regiment which was formed on 19 December.