Gimpo International Airport Squadron shot down four Ilyushin Il-10s for no losses over Gimpo in the USAF's first jet-aircraft victory. Gimpo was captured by the KPA shortly after the capture of Seoul on 28 June 1950. On 29 June eight B-29s of the 19th Bomb Group bombed Gimpo and the Seoul railyards. By July the KPAF were using the base for attacks on UN forces, on 10 July, seven Yak-7s were hidden at Gimpo and used in strikes against UN positions at Cheongju. The next day they surprised and damaged several F-80s in the area. On 15 July the US launched an attack
Gimpo International Airport 19 September, the U.S. Army Corps of Engineers repaired the local railroad up to eight miles (13 km) inland and 32 C-54 transport planes began flying in gasoline and ordnance. VMF-212 was one of the first units to operate from Gimpo before moving forward to Yonpo Airfield. On 25 September the 811th Engineer Aviation Battalion began repairing bomb damage on the asphalt runway at Gimpo and covering it with Marston Matting. On 6 October the USAF took control of Gimpo from the USMC. Following the Chinese Third Phase Campaign and the defeat of UN Forces at the 38th parallel, on