From Japan the Wing engaged in combat operations over South Korea, however flying in the North Pacific area was a challenge to the wing, losing seven F-84Es in non-combat operations and three in combat. On 26 June, in one of the largest air-to-air battles in Korea, two 182d FBS pilots, Captain Harry Underwood and 1st LT Arthur Olighter shot down an enemy MiG-15 that broke through an F-86 Sabre escort of four B-29s. Two other 111th FBS pilots, 1st Lt John Morse and John Marlins scored probables in the same encounter. These were the first combat victories by Air National Guard pilots. On 3 July the 136th sent their aircraft to North Korea, attacking FLAK batteries in downtown Pyongyang while other aircraft attacked North Korean airfields.