squadrons and headquarters in October 1916. The 10th Lancers initially served as part of the Tigris Defences, guarding the lines of communication between Amara and Sheikh Sa’ad. From 1 January to 3 March 1917 a squadron of the regiment formed part of III (Tigris) Corps Cavalry Regiment in the advance to Capture Baghdad.<ref>Lt-Col J.D. Sainsbury, The Hertfordshire Yeomanry: An Illustrated History' 1794–1920', Welwyn: Hertfordshire Yeomanry and Artillery Historical Trust/Hart Books, 1994, ISBN 0-948527-03-X, pp. 182–8.</ref> The Regiment spent the next three years serving in Mesopotamia, but it would be during the Iraqi revolt of 1920, that the 10th Lancers suffered its heaviest casualties. On 3 September 1920, an armoured train at Samawa which was guarded by ‘D’ Squadron was overwhelmed and the 10th Lancers lost 28 men. The Regiment left Mesopotamia on 30 October 1920 and returned to India. The two regiments won the following gallantry awards during the Great War – Distinguished Service Order : Major Arthur Ion Fraser Military Cross : Jemadar Hasan Shah, Risaldar Nur Ahmad Khan (9th Hodson Horse), Ressaidar Laurasib Khan (10th Duke of Cambridge's Own Lancers (Hodson's Horse)) Order of British India : Risaldar Major Malik Khan, Risaldar Muhammad Akram Khan, Risaldar Jai Ram, Risaldar Ram Singh (9th Hodson Horse),Risaldar Ajab Khan (9th Hodson Horse), Risaldar Nur Khan (10th Duke of Cambridge's Own Lancers (Hodson's Horse)) Indian Order of Merit : Sowar Abdullah Khan, Dafadar Hakim Singh, Ressaidar Nur Ahmad Khan, Ressaidar Nur Ahmad Khan, IOM, Lance Daffadar Muhammad Azam, Jemadar Sardar Khan, Risaldar Dost Muhammed, Jemadar Nawab Ali Khan (9th Hodson Horse), Sowar Hayat Muhammad, Dafadar Sarfaraz Khan, Sowar Mansa Ram (10th Duke of Cambridge's Own Lancers (Hodson's Horse)) Indian Distinguished Service Medal : 9th Hodson Horse – 25 medals, 10th Duke of Cambridge's Own Lancers (Hodson's Horse) – 13 medals. Indian Meritorious Service Medal : 9th Hodson Horse – 38 medals, 10th Duke of Cambridge's Own Lancers (Hodson's Horse) – 12 medals. Croix de guerre (Belgium) : Dafadar Nawab Ali Khan, Lance Dafadar Sorain Singh (9th Hodson Horse) Order of the Nile, 4th Class : Ressaidar Hasan Singh (9th Hodson Horse) World War II In 1921, the British decided to cut down on the number of cavalry regiments, and re-amalgamated the two as the 10th Duke of Cambridge's Own Lancers (Hodson's Horse). At the time of the war, the regiment was part of the 2nd Indian Armoured Brigade, which was later designated