George AFB was closed in 1992 due to BRAC action as part of the overall downsizing of the US military after the Cold War .
The alert detachment moved to March Air Force Base , since renamed as March Air Reserve Base due to a later BRAC action .
George AFB was closed in 1992 due to BRAC action as part of the overall downsizing of the US military after the Cold War and the alert detachment moved to March Air Force Base , since renamed as March Air Reserve Base due to a later BRAC action .