In January 1938 Osipenko went to Spain to service with the
Spanish Republican Air Force. He flew with the 1st
Escuadrilla de Caza, and was a successful fighter pilot, though his record is contradictory. One source credits him with 17 individual and 34 shared aerial combat victories making him the most successful Soviet pilot of the conflict. On his return to the Soviet Union Osipenko was made
Hero of the Soviet Union. At the outbreak of the
Great Patriotic War in June 1941 Osipenko was a divisional commander on the
Southern Front; he rose to Corps commander in September 1943 and also served as deputy commander of the countries fighter air defence. After the war he served in various posts until his retirement in 1954, after which he held several academic posts connected with aviation. Alexander Osipenko died on 22 July 1991 in Moscow. ==References==