The 5th Battalion, York and Lancaster Regiment, was a unit of Britain's Territorial Force formed in 1908 from Volunteer units originally raised in the West Riding of Yorkshire in 1860. It served in some of the bitterest fighting on the Western Front during World War I, including the Somme, Ypres and the German spring offensive. Before World War II it was converted to air defence, in which role it served during The Blitz and in Burma, where it employed anti-aircraft guns for 'bunker-busting'. Postwar, it continued to serve in Anti-Aircraft Command until 1955.
