1 Army Corps (France)
| 1er Corps d'Armée | |
|---|---|
| Active | 27 August 1939 - 10 July 1940 16 August 1943 - 30 April 1946 c.1960s-1990 |
| Country |
 France
|
| Branch | French Army |
| Type | Corps |
| Part of | First Army (France), Seventh Army (France) |
| Engagements | World War I, World War II |
| Commanders | |
| Notable commanders |
Émile Béthouart |
The 1st Army Corps (French: 1er Corps d'Armée) was first formed before World War I. During World War II it fought in the Campaign for France in 1940, on the Mediterranean islands of Corsica and Elba in 1943 - 1944, and in the campaigns to liberate France in 1944 and invade Germany in 1945.
The Corps saw service throughout the entirety of World War I, notably participating in the Battle of Passchendaele (as part of the French First Army). At the time of the Battle of Passchendaele, the Corps comprised the 1st, 2nd, 51st and 162nd Infantry Divisions.
1st Army Corps was constituted on August 27, 1939, in Lille under the command of Major General Sciard as part of the French mobilization for war. Initially assigned as part of the French First Army, the corps was transferred to the French Seventh Army and moved to coastal regions near Calais and Dunkerque by mid-November 1939. On May 10, 1940, the Corps commanded the 25th Motorised Infantry Division (25e DIM) in addition to its organic units.
With the German invasion violating the neutrality of Belgium and the Netherlands on May 10, 1940, the 1st Army Corps moved into Belgium with the goal of gaining contact with the Dutch Army. This was achieved on May 12 near Breda, but the general failure of the Allies to hold the German advance mandated early retreats so that the 1st Army Corps would not be cut off. Breda fell to the Germans on May 13 and the corps conducted a fighting withdrawal through Dorp and Wuustwezel to the fortified zone of Antwerp, Belgium. During May 15–17, the corps defended the Scheldt Estuary with the 60th and 21st Infantry Divisions (60e DI and 21e DI), but was ordered to retreat back into France on May 18.
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