Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. XI Corps was an army corps of the British Army in World War I that served on the Western Front and in Italy. It was recreated as part of Home Forces defending the United Kingdom during World War II. XI Corps was formed in France on 29 August 1915 under Lt-Gen Richard Haking. Its first serious engagement (as part of Sir Charles Monro''s First Army) was the Battle of Fromelles (19 July 1916), a diversion to the Somme offensive in which two untried divisions were launched into an ill-planned subsidiary attack in Flanders. It achieved nothing but cost thousands of casualties, and caused great resentment in Australia. XI Corps was one of two corps HQs moved to the Italian Front in November 1917.