 Initially these units were considered to be part of the Machine Gun Corps and the 1st Canadian Tank Battalion, 2nd Canadian Tank Battalion and the 3e Bataillon de chars d'assaut were all too late to join the fighting in the First World War.However, the 1st Canadian Tank Battalion was still training in Mark V tanks in the U.K. when the Canadian Tank Corps was finally authorized two days after the armistice.It seems like tanks were forgotten by the Cavalry after the war.