1939 45 STAR Uk one of dark blue and 0000901 one of dark blue and the other of light blue The Australian Defence Medal (ADM) has been established to recognise Australian Defence Force Regular and Reserve personnel who have demonstrated their commitment and contribution to the nation by serving for an initial enlistment period or four years service The 1939 45 Star is awarded for operational service between 3 September 1939 and 2 September 1945 for: a period of six months (180 days) operational service for RAN and Army personnel and RAAF non air crew personnel a period of two months operational service for air crew personnel