japanese navy pilots posing with a Nakajima J1N1 Gekko Fighter Aircraft full of kill markings (japan 1944)

kill markings 

Kiyoto Koga became the first ace of the japanese navy air force when in november 1937 he shot down a russian I-16 over nanking and by january 1938 he had destroyed 13 planes, he died in a flying accident in september 1938

Kiyoto Koga

japanese army pilots in the mongolian steppes during the nomonhan incident in 1939, fighter ace masatoshi masuzawa (center) destroyed 12 soviet planes in just two days