This star was awarded to commemorate the Battle of the Atlantic within the period 3 September 1939 to 8 May 1945. The 1939-45 Star must have been earned by 6, or 2 for aircrew, months service before commencing qualifying service for the Atlantic Star.
The recipient was awarded this star if their service period was terminated by their death or disability due to service. Also the award of a gallantry medal or MID also produced the award of this medal, regardless of their service duration.
Royal Navy and Merchant Navy personnel, together with Army and RAF personnel serving with either Naval service, had to complete 6 months service in the Atlantic, home waters, North Russia Convoys or South Atlantic waters west of longitude 20 degrees East.
RAF members of air crews who had completed 2 months service in active operations within the specified area, providing that service for the 1939-45 Star had been completed.