4392nd Combat Defense Force

The 4392nd Combat Defense Force was a United States Air Force security unit activated in the early 1960s to provide perimeter defense and law enforcement at Vandenberg Air Force Base, California. Tasked with protecting strategic missile facilities and supporting launch operations, the unit played a critical role during the height of the Cold War. Its responsibilities included base security, rapid response to emergencies, and coordination with other defense and intelligence agencies. The 4392nd Combat Defense Force was eventually redesignated as part of broader Air Force Security Police reorganizations in the 1970s.