During the Second World War, new recruits who signed up for the Canadian Active Service Force are sent to Camp Borden. Over 14,000 personnel are accommodated in an immense "city on its own" with barracks, administration centre, warehouses, hangars, classrooms, gasoline stations, department stores, even movie theatres set up at the camp. Constantly expanding, Camp Borden has become the most important wartime training base in Canada, with both army and air force training facilities.