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Peacekeeper Missile Deployment
     The operational missile was first manufactured in February 1984 and deployed in December 1986 to the 90th Strategic Missile Wing at F.E. Warren AFB in Wyoming into retro-fitted Minuteman silos. Fifty working missiles had been deployed at Warren by December 1988. The planned deployment of one hundred missiles was cancelled by Congress in July 1985, again over the survivability issue. In that decision, Congress limited the deployment Peacekeeper ICBMs to 50 missiles until a more survivable basing plan could be developed.
    The survivability issue was to be solved by a "rail garrison" system whereby 25 trains, each with two missiles, would use the national railroad system to conceal themselves. It was intended that this system would become operational in late 1992, but budgetary constraints and the changing international situation led to it being scrapped.
     The project has cost around $20 billion (up to 1998) and produced 114 missiles, at $400 m for each operational missile. The "flyaway" cost of each missile is estimated at $2070 million.
     The missiles were gradually retired, with 17 withdrawn during 2003, leaving 29 missiles on alert at the beginning of 2004. At the start of 2005 only 10 remained on alert, scheduled to be retired by the end of the year. The last Peacekeeper was removed from alert on 19 September 2005 during the final deactivation ceremony when the 400th Missile Squadron inactivated as well. The rockets are being converted to a satellite launcher role by Orbital Sciences, as the OSP-2 Minotaur IV SLV, while their warheads will be deployed on the existing Minuteman III missiles.