5925142 Troops landing at Sheikh Saad, Mesopotamia, 1916 (b/w photo) by Unknown photographer, (20th century); National Army Museum, London; (add.info.: Troops landing at Sheikh Saad, August 1916. Photograph, World War One, Mesopotamia, 1916. A large proportion of the British Empire troops used in Mesopotamia in the First World War came from the Indian Army. Sheikh Saad was located on the River Tigris and had been captured in January 1916 during the ill-fated attempt to relieve the siege of Kut. It later served as a camp for General Maude?s force as it trained and organised for a new offensive against the Turks in late 1916. From a collection of 265 photographs compiled by Major W Leith-Ross, Indian Army Staff.); by National Army Museum .