Susaek Airport, designated G 113 and assigned the ICAO code RKRS, is a military airfield located in Goyang, Gyeonggi Province, South Korea, on the northwestern outskirts of the Seoul metropolitan area. It has historically served the Republic of Korea Air Force and has had connections to United States military operations on the Korean peninsula. The airfield is not a commercial passenger airport and does not handle scheduled civilian airline services. It occupies land in a densely urbanized region that has seen significant residential and industrial development over the decades surrounding it. Due to its military nature, public information about current operational status, facilities, and infrastructure is limited. There is no IATA code assigned, reflecting the absence of commercial airline operations.