Military Service Act
The Military Service Act became law on 29 August 1917. It was a politically explosive and controversial law that bitterly divided the country along French-English lines. It made all male citizens aged 20 to 45 subject to conscription for military service, through the end of the First World War. The Act’s military value was questionable, but its political consequences were clear. It led to the creation of Prime Minister Borden’s Union Government and drove most of his French-Canadian supporters into opposition.