 In 1986 Distinctive Environmental Uniforms (DEU) were introduced to the Canadian Forces and the Air Command (now once again known as the Royal Canadian Air Force) variant maintains some similarity with the RAF's uniform.Until 2014, the RCAF DEU retained the gold sleeve rings (for officers), chevrons (for non-commissioned personnel) and crowns/Royal Arms Of Canada (for warrant officers).On 24 September 2014, the RCAF announced it would return in part to pre-unification RAF-styled insignia; however, with the exception of Private being retitled "Aviator" ("Aviateur" in French), rank titles would remain unchanged.