Grigory Panteleyevich Kravchenko was a test pilot who became a flying ace and twice Hero of the Soviet Union in Asia before the start of Operation Barbarossa. When he was killed in action during World

Sergey Prokofyevich Denisov was a Soviet fighter pilot during the Spanish Civil War who went on to hold various high commands during the Battles of Khalkhin Gol, the Soviet-Finnish War, and World War