Dozens of aviators were credited as flying aces in the Korean War from 1950 to 1953. The number of total flying aces, who are credited with downing five or more enemy aircraft in air-to-air combat, is disputed in the war.
The Korean War saw the first widespread use of jet engine-powered fighter aircraft for both sides of a war. Subsequently, difficulty arose in crediting the number of victories for each side, thanks in part to poor records, intentional overestimation, and the difficulty of confirming crashes in MiG Alley, where the majority of air-to-air combat took place in the war. As a result, there is a large discrepancy on both sides as to the number of victories claimed versus aircraft lost, and it is extremely difficult to determine the accuracy of many victories. The ace status of dozens of pilots still remains in question.
Aviators from four nations may have qualified as aces during the Korean War; between six and nine aces have been estimated for China and up to four in North Korea. Pilots of the Soviet Union had the most difficulty confirming victories and accurately determining which pilots achieved ace status, and between 34 and 60 pilots from that nation have been postulated as possible aces in the war. For the United Nations, the United States was the only country with pilots to attain ace status, with 40. No pilot from another UN country attained ace status, though many claimed victories. Among these, Royal Canadian Air Force pilot Ernest A. Glover claimed three victories.[1]