 The 1st Battalion was converted to an armoured regiment on 26 January 1942 and designated as the 27th Armoured Regiment (The Sherbrooke Fusilier Regiment), CAC, CASF.By this time the name Fusilier was singular.It was redesignated as the 27th Armoured Regiment (The Sherbrooke Fusilier Regiment), RCAC, CASF on 2 August 1945.