Minuteman II Mission Procedures Trainer "Ace in the Hole: Minuteman Strategic Missiles" Since 1962, the Minuteman missile system has played an important role in American strategic defense. Highly trained and disciplined U.S. Air Force crews in isolated, heavily protected missile control complexes maintain, secure and operate the system. This missile trainer and the model on display represent Minuteman II systems operational from 1966 through 1991. Click the following links for more information about the Minuteman II Mission Procedures Trainer. The Minuteman System Minuteman Timeline Missile Combat Crews Alert Facility Support Launching Missiles Missile Alert Facility Model Click here to return to the Missile Gallery.