 They landed at Gallipoli in September 1915, serving as dismounted infantry, and were attached to 52nd (Lowland) Division in October; they were withdrawn in January 1916 and moved to Egypt.In early 1917 the regiment was amalgamated with The Ayrshire Yeomanry to form the 12th (Ayr and Lanark Yeomanry) Battalion of the Royal Scots Fusiliers in 74th (Yeomanry) Division, seeing service in the Palestine campaign before moving to the Western Front in May 1918.Whilst on the Western Front, Sergeant Thomas Caldwell of the regiment was awarded a Victoria Cross.