The uniforms of the Canadian Armed Forces are the official dress worn by members of Canada's military while on duty. Prior to the unification of the Canadian Armed Forces, the uniforms of the Canadian Army, Royal Canadian Air Force (RCAF) and Royal Canadian Navy (RCN) were similar to their counterparts in the forces of the United Kingdom and other Commonwealth countries, save for national identifiers and some regimental accoutrements. With the unification of the Canadian Forces in 1968, all service branches began to wear Canadian Forces rifle green uniforms. Distinctive Environmental Uniforms (DEUs) for the various branches of the Canadian Forces was introduced in the late 1980s, and are generally similar to their pre-unification uniforms.