 On 3 January 1990, SAC re-designated the 812th Combat Support Group as the 812th Strategic Support Wing (812 SSW), which, for a short time, became Ellsworth's fourth wing.The 812 SSW consolidated all combat support activities into one organization.On 31 July 1990, SAC replaced the 12th Air Division with the Strategic Warfare Center (SWC), which provided operational command and administrative control over Ellsworth's subordinate units.