Parr then served as an F-80 Shooting Star pilot with the 7th Fighter Bomber Squadron at Furumaki Air Base, Japan, and then deployed to Korea at Taegu Air Base from July 1950 to May 1951, where he flew several ground attack missions.

He then served as an F-86 Sabre pilot with the 116th Fighter Interceptor Squadron at Geiger Field, Washington, from June to August 1951, and with the 94th Fighter Interceptor Squadron at George Air Force Base, California, from August 1951 to May 1953.
Parr returned to Korea as an F-86 pilot with the 335th Fighter Interceptor Squadron of the 4th Fighter Interceptor Wing at Kimpo Air Base from May to September 1953.

One of his missions began on June 7, 1953, when he descended from 41,000 feet over the Yalu River that separated North Korea from China and saw four Soviet MiG-15s.
He pursued them, firing his guns and then leveling off at 300 feet.
As he rose to 4,000 feet, he realized that he greatly underestimated the enemy's strength.
There were 16 MiGs in there and in the following dogfight, he destroyed two MiG-15s and damaged another before withdrawing to safety.

On June 30, his flight was attacked by 10 MiG-15s.
He managed to destroy two MiGs.
He then helped drive off several other MiGs, which were threatening his wing commander, despite low fuel.
For his heroic actions, he was awarded Distinguished Service Cross.

During the Korean War, he flew 165 combat missions and helped to develop new combat tactics for fighting MiG-15s.
He managed to shoot down a total of ten enemy aircraft, all while flying F-86 Sabres in 47 missions, during the last 7 weeks of the war.
He continued to serve with the 334th FIS until February 1954.

On July 27, 1953, the day of the armistice, then Captain Parr scored the last aerial 'kill' of the  Korean War by shooting down an unarmed Soviet Navy Ilyushin Il-12 transport aircraft, which was flying from Port Arthur to Vladivostok through the North Korean airspace.
All 21 passengers, including 3 medical staff, were killed.
The Soviet Union filed a lawsuit of $1860000 against Parr in the International Court of Justice, however the American side denied this.
Parr then served as an F-80 Shooting Star pilot with the 7th Fighter Bomber Squadron at Furumaki Air Base, Japan, and then deployed to Korea at Taegu Air Base from July 1950 to May 1951, where he flew several ground attack missions.
He then served as an F-86 Sabre pilot with the 116th Fighter Interceptor Squadron at Geiger Field, Washington, from June to August 1951, and with the 94th Fighter Interceptor Squadron at George Air Force Base, California, from August 1951 to May 1953. Parr returned to Korea as an F-86 pilot with the 335th Fighter Interceptor Squadron of the 4th Fighter Interceptor Wing at Kimpo Air Base from May to September 1953.
One of his missions began on June 7, 1953, when he descended from 41,000 feet over the Yalu River that separated North Korea from China and saw four Soviet MiG-15s. He pursued them, firing his guns and then leveling off at 300 feet. As he rose to 4,000 feet, he realized that he greatly underestimated the enemy's strength. There were 16 MiGs in there and in the following dogfight, he destroyed two MiG-15s and damaged another before withdrawing to safety.
On June 30, his flight was attacked by 10 MiG-15s. He managed to destroy two MiGs. He then helped drive off several other MiGs, which were threatening his wing commander, despite low fuel. For his heroic actions, he was awarded Distinguished Service Cross.
During the Korean War, he flew 165 combat missions and helped to develop new combat tactics for fighting MiG-15s. He managed to shoot down a total of ten enemy aircraft, all while flying F-86 Sabres in 47 missions, during the last 7 weeks of the war. He continued to serve with the 334th FIS until February 1954.
On July 27, 1953, the day of the armistice, then Captain Parr scored the last aerial 'kill' of the  Korean War by shooting down an unarmed Soviet Navy Ilyushin Il-12 transport aircraft, which was flying from Port Arthur to Vladivostok through the North Korean airspace. All 21 passengers, including 3 medical staff, were killed. The Soviet Union filed a lawsuit of $1860000 against Parr in the International Court of Justice, however the American side denied this.
Ralph Parr