At the start of the First World War, the Duke of Edinburgh's (Wiltshire Regiment), like most of the rest of the British Army, consisted of two regular battalions (the 1st and 2nd); there was also a Special Reserve battalion (3rd) and a Territorial Force battalion. Eventually, the Wiltshire Regiment expanded to ten battalions, seven of which served overseas. These included three additional Territorial Force battalions (1/4th, 2/4th, and 3/4th Battalions) as well as four service battalions (5th, 6th, 7th, and 8th battalions) formed for the Kitchener's New Army formations.