Captain (British Army and Royal Marines) shoulder epaulets. After the Crimean War a new rank system was introduced which contained the first complete rank insignia in British Army history. A captain's rank insignia was worn on the collar and displayed a crown and a pip (which is now the rank insignia for a lieutenant-colonel). The rank insignia were returned to the shoulder boards in 1880 for all officers in full dress, when the system of crowns and stars was reorganised. From this time, until 1902, a captain had just two stars. The 1902 change gave captains three stars, which continues to be used. In addition to
United States Air Force officer rank insignia sleeves, similar to the officer rank insignia not used by the US Navy and Coast Guard. This was similar to the rank insignia of the British Royal Air Force, the Canadian Armed Forces and other Commonwealth air forces. The uniform reforms also introduced for the first time in the USAF slip-on shoulder marks on the other uniforms, using the traditional rank insignia. The "McPeak uniform" was very unpopular, drawing comparisons to the jackets worn by airline pilots, and the traditional rank insignia were reinstated within a week of General McPeak's retirement in 1994 on the shoulder boards, while the slip-on