as part of the re-thinking of military concepts after the vietnam war, beginning in the early 1970s with the establishment of the all-volunteer armed forces, both the air national guard and air force reserve force planning and policymaking were influenced by the "total force" concept and have remained so to this day. the concept sought to strengthen and rebuild public confidence in the reserve forces while saving money by reducing the size of the active duty force. in practical terms, the total force policy sought to ensure that all policymaking, planning, programming, and budgetary activities within the defense department considered active and reserve forces concurrently and determined the most efficient mix of those forces in terms of costs versus contributions to national security. the policy also insured that reservists and guardsmen, not draftees, would be the first and primary source of manpower to augment the active duty forces in any future crisis.