The Royal Canadian Air Force Women's Division was a non-combatant element of the Royal Canadian Air Force (RCAF) which was active during the Second World War. The Women's Division's original role was to replace male air force personnel so that they would be available for combat-related duties. First called the Canadian Women's Auxiliary Air Force (CWAAF), the name changed to Royal Canadian Air Force Women's Division in February 1942. Women's Division personnel were commonly known as WDs. The RCAF was the first branch of the Canadian armed services to actively recruit women.