RAF Bomber Command aircrew of World War II

The aircrews of RAF Bomber Command during World War II operated a fleet of bomber aircraft that carried out the strategic bombing operations from September 1939 to May 1945, including as part of the Combined Bomber Offensive. The crews were men from the United Kingdom, other Commonwealth countries, and occupied Europe, especially Poland, France, Czechoslovakia and Norway, as well as other foreign volunteers.

Source: Wikipedia — RAF Bomber Command aircrew of World War II (CC BY-SA 4.0)