Cap Badge - 89th (Calgary) Battalion, CEF The 89th Battalion (Alberta), CEF, was an infantry battalion of the Great War Canadian Expeditionary Force. The 89th Battalion was authorized on 22 December 1915 and embarked for Britain on 2 June 1916, where its personnel were absorbed by the 9th Reserve Battalion, CEF to provide reinforcements for the Canadian Corps in the field. The battalion disbanded on 21 May 1917. The 89th Battalion recruited throughout Alberta and was mobilized at Calgary. The 89th Battalion was awarded the battle honour THE GREAT WAR 1916 and is perpetuated by The King's Own Calgary Regiment (RCAC).