 "Gruppen", it bombed Poltava Air Base, which housed United States Army Air Force bombers that had been flying shuttle-missions to Eastern Europe and landing in the Soviet Union.The raid caused significant losses to the US Fifteenth Air Force.A Heinkel He 177 from 2./"Aufklärungsgruppe" 100 shadowed the 3rd Bombardment Division, 45th Bombardment Wing to Poltava.