Gimpo International Airport 5 January 1951 General Ridgway ordered the evacuation of Seoul and the withdrawal of UN forces to a new defensive line along the 37th parallel. Units based at Gimpo were withdrawn to the south and facilities were destroyed to prevent their use by Chinese and North Korean forces. UN Forces resumed the offensive again in late January 1951 and launched Operation Thunderbolt on 25 January with the aim of pushing Chinese and North Korean forces back north of the Han River. By 10 February 1951, UN forces once again had control of Gimpo. USAF units based at Gimpo (Kimpo) included:
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