It is often referred to within JSOC as Task Force Blue. DEVGRU is administratively supported by Naval Special Warfare Command and operationally commanded by the Joint Special Operations.
The origins of DEVGRU are in SEAL Team Six, a unit created in the aftermath of Operation Eagle Claw. During the Iran hostage crisis in 1979, Richard Marcinko was one of two U. Navy representatives for a Joint Chiefs of Staff task force known as the TAT ( Terrorist Action Team).