The Air Force intends to replace the Minuteman III with an almost entirely new intercontinental ballistic missile that utilizes the existing reentry vehicles capable of delivering single and multiple nuclear warheads, according to a Jan. 23 request for information . The document states that the Ground-Based Strategic Deterrent (GBSD), as the Minuteman replacement effort is known, will utilize existing, rejuvenated missile silos and launch-control facilities. "The new weapon system will use the existing MK12A and MK21 reentry vehicles in the...
