Unsung heroes of the missile field Published Oct. 5, 2016 By Senior Airman Apryl Hall Minot Air Force Base Public Affairs MISSILE COMPLEX, N.D. -- Periodic maintenance team members from the 91st Missile Maintenance carry out their mission at the A-09 launch facility in the missile complex, N.D., Sept. 7, 2016. PMT members are responsible for the upkeep of launch facilities, missile alert facilities and launch control centers. PMT Airmen maintain over 150 sites regularly. (U.S. Air Force photo/Senior Airman Apryl Hall)