In the past, Denver has been home to several other airports that are no longer operational. Stapleton International Airport was closed in 1995 when it was replaced by DIA. Lowry Air Force Base was a military flight training facility that ceased flight operations in 1966, with the base finally being closed in 1994. Both Stapleton and Lowry have since been redeveloped into primarily residential neighborhoods. Buckley Air Force Base, a former Air National Guard base, is the only military facility in the Denver area.