The Air Crew Europe Star was awarded for two months of operational flying
from the UK over Europe. This medal was issued between 03 September 1939
and 05 June 1944. It was not awarded after D-Day. The Air Crew Europe Star
may not be awarded until the 1939-1945 Star has been qualified for by 2
months service in an air operational unit. The total requirement to earn both
stars is four months.