Ligue de hockey senior du Québec
During the World War II years, NHL players enlisted in the war effort. A large number of them were posted to Ottawa base. This included the complete Boston Bruins 'Kraut Line'. The clubs played in the Quebec Senior Hockey League, and the Ottawa Commandos (war-time name for the Senators) and the Ottawa RCAF Flyers won the Allan Cup senior men's Canadian ice hockey championship.