The 1939-1945 Star is the first in a series of eight campaign stars instituted in 1945 to recognise service in the Second World War.
It was usually awarded for six months (180 days) service in specified operational areas.Those whose service was shortened by death, injury or capture or who were awarded a decoration or mention in despatches also qualified for the Star. Service of one day or more in specified battles or invasions qualified for the special award of the 1939-1945 Star. For example, in Greece and Crete between 10 March 1941 and 31 May 1941, or in Guadalcanal (Allied invasion) between 7 August 1942 and 9 February 1943.For service at sea by Navy and Merchant Navy personnel 180 days ‘service afloat in areas of active operations (dangerous waters)’ between 3 September 1939 and 2 September 1945 was required. From 10 June 1940 to 8 May 1945 ‘dangerous waters’ are defined as ‘anywhere at sea’. Army and Air Force personnel who were posted for duty to His Majesty' warships and other commissioned ships also qualified under the same criteria. Air service Aircrew who had 'taken part in operations against the enemy' and completed two months (60 days) in 'an operational unit' also qualified for the 1939-1945 Star.