 The 3/4th Battalion was formed June 1915 as a reserve battalion; it amalgamated with 2/4th Battalion in January 1916.The 3/5th Battalion was formed June 1915 as a reserve battalion; it remained in the United Kingdom and supplied drafts of trained infantrymen to the 1/5th and 2/5th battalions; it 5th (Reserve) Battalion.The 12th Battalion was formed on 1 January 1917 from 41st Provisional Battalion (TF) in 218th Brigade of 73rd Division, a Home Defence formation; it was disbanded March 1918.