United States Forces Korea (USFK) is a sub-unified command of United States Pacific Command (USPACOM). USFK is the joint headquarters through which U.S. combat forces would be sent to the South Korea/US (ROK/U.S.) Combined Forces Command’s (CFC) fighting components — 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 Korea (CNFK), U.S. Marine Forces Korea (MARFORK) and Special Operations Command Korea (SOCKOR). It was established on 1 July 1957.