United States Forces Korea (USFK) is a sub-unified command of United States Indo-Pacific Command (USINDOPACOM). USFK is the joint headquarters through which U.S. combat forces would be sent to the fighting components under the South Korea/US (ROK/U.S.) Combined Forces Command (CFC) – the combined ground, air, naval, marine and special operations forces component commands. Major USFK elements include Eighth U.S. Army (EUSA), U.S. Air Forces Korea (Seventh Air Force), U.S. Naval Forces in Korea (CNFK), U.S. Marine Forces Korea (MARFORK) and Special Operations Command Korea (SOCKOR). It was established on .