Abstract Over 5.5 million Royal Air Force (RAF) / Royal Canadian Air Force (RCAF) / South African Air Force (SAAF) / United States Army Air Force (USAAF) vertical and oblique aerial reconnaissance prints covering locations throughout western Europe during the Second World War (1939-1945) and associated c.35,000 paper sortie plots. The entire archive is also held on 7,500 35mm microfilm. Countries covered are: Albania, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czechia,...