on 1 september 1991, the wing was redesignated as the 351st missile wing and implemented the objective wing organization. it was relieved from sac in advance od sac's disestablishment and reassigned to eighth air force in the new air combat command on 1 june 1992. it was again reassigned on 1 july 1993 to the air force space command and assigned to the new twentieth air force. the same day, it relinquished "host wing" responsibilities for whiteman afb, transferring that role to air combat command's 509th bomb wing, operating the b-2 spirit strategic bomber.