US Special Operations Command (SOCOM) is a Unified Combatant Command (all major combat branches have forces within this command). They are in charge of overseeing all of the Special Operations Commands of each of the branches (ie. MARSOC, AFSOC, etc.). It was created after Operation Eagle Claw failed, which involved units that had never trained and operated together before. One of SOCOM's main roles is to coordinate joint efforts between special operations units of different branches. For example, if SEAL Team 3 and the 1st Ranger Battalion were going to perform an operation together, SOCOM would be in charge of overseeing the operation, not USASOC(Army) or NSWC(Navy), respectively.