USAF
On Dec. 19, 1986, the White House announced President Ronald Reagan's approval to develop a rail system for basing part of the Peacekeeper Intercontinental Ballistic Missile (ICBM) force. To increase survivability of this force, 50 Peacekeepers would be deployed in existing Minuteman silos and 50 more would be mounted on 25 USAF trains, two per train. Each train would consist of two locomotives, two security cars, two missile launch cars housing the missiles, one launch control car, one fuel car and one maintenance car. Each launch car carried one Peacekeeper ICBM, in a launch tube that could be elevated to fire the missile from the bed of the car.
http://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/197554/peacekeeper-rail-garrison-car/
