When the jet age arrived, the question of who would prove the master of this new, blisteringly fast form of aerial combat was answered over the skies of Korea. The answer — kept secret for decades — was a Soviet pilot named Nikolai Sutyagin, who scored 22 aerial victories in the MiG-15 to become the highest-scoring jet ace in history.

The Secret War Over Korea

When the Korean War began in 1950 and North Korean forces overran the South, the United States and its UN allies entered the conflict. The Soviet Union, officially neutral, secretly committed entire fighter regiments equipped with the new Mikoyan-Gurevich MiG-15 jet fighter to defend North Korea and China. Soviet pilots wore Chinese or North Korean uniforms and were forbidden to fly over the front lines or speak Russian on the radio.

MiG Alley and the MiG-15

The MiG-15 was a revelation. When it first appeared in Korean skies in November 1950, it outclassed every UN aircraft it encountered. Only the North American F-86 Sabre could meet it on roughly equal terms, and the corridor of airspace along the Yalu River — where Soviet-piloted MiGs challenged F-86 formations — became known as "MiG Alley," one of the most intense zones of jet-versus-jet combat in history.

Nikolai Vasilyevich Sutyagin was born on 5 May 1923 and was a veteran of World War II before arriving in Korea. Flying with the 17th IAP (Fighter Aviation Regiment), he proved to be a natural jet pilot — adapting to the new speeds and energy management of jet combat with remarkable speed. Between May and October 1951 he scored 22 confirmed victories, including F-86 Sabres, F-84 Thunderjets, F-80 Shooting Stars, and B-29 Superfortresses.

A Record Hidden by the Cold War

Because the Soviet Union officially denied its involvement in the Korean War, Sutyagin's record was classified for decades. He could not be publicly honoured, could not tell his story, and was not awarded the Hero of the Soviet Union until 1951 — even then without public acknowledgement of why. It was only after the Cold War ended and Soviet archives were opened that his extraordinary achievement could be properly assessed.

Nikolai Sutyagin's 22 aerial victories in jet combat have never been surpassed. He remains, decades after his sorties over MiG Alley, the greatest jet ace in the history of aviation — a record forged in secret, long denied, and now finally recognised.

Watch: Nikolai Sutyagin Documentary