Editing Corps (section)

====United Kingdom====
Wellington formed a {{lang|fr|corps d'armée}} in 1815 for commanding his mixed allied force of four divisions against Napoleon I.

When the British Army was expanded from an expeditionary force in the First World War, corps were created to manage the large numbers of divisions. The [[List of British corps in World War I|British corps in World War I]] included 23 infantry corps and a few mounted corps. The word was adopted for other special formations such as the [[Officers Training Corps]]. Military training of teenage boys is undertaken at secondary schools through the [[Combined Cadet Force]], in which participation was compulsory at some schools in the 1950s. Schoolboy jargon called the CCF simply "Corps".

The [[British Army]] still has a corps headquarters for operational control of forces. [[I Corps (United Kingdom)|I Corps]] of the [[British Army of the Rhine]] was redesignated the [[Allied Rapid Reaction Corps]] in 1994. It is no longer a purely British formation, although the UK is the "framework nation" and provides most of the staff for the headquarters. A purely national Corps headquarters could be quickly reconstituted if necessary.

It took command of the International Security Assistance Force in Afghanistan on 4 May 2006. Previously, it was deployed as the headquarters commanding land forces during the [[Kosovo War]] in 1999 and also saw service in [[Bosnia and Herzegovina]], commanding the initial stages of the [[IFOR]] deployment prior to that in 1996. Otherwise, the only time a British corps headquarters has been operationally deployed since 1945 was [[II Corps (United Kingdom)|II Corps]] during the [[Suez Crisis]].