Headquarters Emergency Relocation Team (HERT) was a subordinate unit to the United States' Strategic Air Command (SAC) during the Cold War, poised to provide command and control (C2) of SAC forces in the event of a national emergency (i.e. nuclear war).
[1] The personnel and equipment were stationed at Offutt Air Force Base, Nebraska, with temporary deployment locations at the Cornhusker Army Ammunition Plant, Grand Island, Nebraska.
The term HERT was superseded by Enduring Battle Management Support Center (EBMSC) circa 1982.
The unit was redesignated 55th Mobile Command and Control Squadron after SAC was inactivated in 1992.
3 WW developed nuclear fallout procedures for Post Attack Command and Control System (PACCS), and demonstrated Defense Meteorological Support Program (DMSP) Mark IV capabilities.