I Corps (United Kingdom)

I Corps
I Corps formation badge during the Second World War.[1]
Active	1815–1994
Country	United Kingdom
Branch	British Army
Type	Field corps
Engagements	Waterloo Campaign Battle of Quatre Bras Battle of Waterloo First World War[2] Battle of Mons Battle of the Marne Battle of the Aisne First Battle of Ypres Battle of Aubers Ridge Battle of Festubert Battle of Loos The Bluff and St Eloi Battle of the Somme 1916 Battle of the Ancre German Retreat to the Hindenburg Line 1917 Battle of Arras Battle of the Lys The Final Advance in Artois Second World War Retreat to Dunkirk 1940 Invasion of Normandy Battle for Caen Battle of the Scheldt Cold War British Army of the Rhine
Commanders
Notable commanders	The Prince of Orange Sir Douglas Haig Sir Charles Monro Sir Hubert Gough Sir Arthur Holland Sir John Dill Sir Harold Alexander Sir John Crocker
Insignia
Corps formation sign during the First World War.[3]

I Corps ("First Corps") was an army corps in existence as an active formation in the British Army for most of the 80 years from its creation in the First World War until the end of the Cold War, longer than any other corps. It had a short-lived precursor during the Waterloo Campaign. It served as the operational component of the British Army of the Rhine (part of NATO's Northern Army Group (NORTHAG)) during the Cold War, and was tasked with defending West Germany.