IX Corps (United Kingdom)

The British IX Corps was an army corps formation that existed during World War I and World War II.

World War I
The IX Corps was originally formed in England in 1915 in readiness to make a new landing at Suvla during the Battle of Gallipoli. Command of the corps was given to Lieutenant-General Sir Frederick Stopford. His handling of the corps during the August Offensive warranted his replacement after only 9 days with Lieutenant-General Julian Byng.

During the Gallipoli campaign the corps comprised the following divisions:
 * 10th (Irish) Division
 * 11th (Northern) Division
 * 13th (Western) Division
 * 53rd (Welsh) Division
 * 54th (East Anglian) Division
 * 2nd Mounted Division

Following the British evacuation of Gallipoli, the corps was moved to France in 1916, where it was commanded by Alexander Hamilton-Gordon until he was relieved in 1918. After severe losses during the Battle of the Lys in April 1918 the corps was moved south to a quiet sector to reform. This sector was the unlucky target of the next German offensive, the Third Battle of the Aisne in May-June 1918, causing further losses to IX Corps.

At the time of the Armistice the IX Corps was part of the Fourth Army.

World War II
IX Corps saw active service in Algeria and Tunisia during World War II as part of First Army. It was disbanded after the end of the Tunisia campaign.

General Officers Commanding
Commanders included:
 * Aug 1915 Lieutenant General Frederick Stopford
 * Aug 1915 - Jan 1916 Lieutenant General Julian Byng
 * 1916 - 1918 Lieutenant General Alexander Hamilton-Gordon
 * Sep 1918 - 1919 Lieutenant General Walter Braithwaite
 * 7 June 1941 - 17 November 1941 Lieutenant General Ridley Pakenham-Walsh
 * 18 November 1941 - 31 January 1942 Lieutenant General Edwin Morris
 * 1 February 1942 - 11 September 1942 Lieutenant General Francis Nosworthy
 * 12 September 1942 - 29 May 1943 Lieutenant General John Crocker
 * 29 May 1943 - 3 June 1943 Lieutenant General Brian Horrocks