 The regiment subsequently mobilized the 1st Battalion, Les Fusiliers de Sherbrooke, CASF' for active service on 18 March 1942.It served in Canada in a home defence role as part of the 15th Infantry Brigade, 7th Canadian Division and the 14th Infantry Brigade, 6th Canadian Division.Between September 30, 1942 and October 13, 1943, Les Fusiliers de Sherbrooke, CASF was stationed at Camp Debert, Nova Scotia.