A bar is distinguished by a rosette being worn on the ribbon when ribbons alone are worn

prior to the D-Day landings

the George Cross may be awarded posthumously

The Royal Warrant

they were awarded the Burma Star instead

Air Force Cross GVI Medal Campaign_GSM Army & RAF 1918-64 A bar is distinguished byThe Air Force Cross (GVI) was awarded to officers of the Royal Air Force and other qualifying air services for acts of courage, exceptional skill and devotion to duty whilst flying, where the service did not involve active operations against the enemy. Bearing the effigy of King George VI, this version of the Air Force Cross was awarded during his reign and forms an important part of British military aviation history. The decoration recognised