In the same way the 744th Bombardment Squadron, one of the unit's World War II historical bomb squadrons, replaced the 31st BS. The 856th Medical Group, 63d Munitions Maintenance Squadron and the 903d Air Refueling Squadron were reassigned to the 456th. Component support units were replaced by units with numerical designation of the newly established wing. Under the Dual Deputate organization, all flying and maintenance squadrons were directly assigned to the wing, so no operational group element was activated. The 4126th's support group and maintenance squadrons were replaced by ones with the 456th numerical designation of the newly established wing. Each of the new units assumed the personnel, equipment, and mission of its predecessor.