 Under conditions of the Strategic Arms Reduction Treaty, all of the 44th Missile Wing's Minuteman silos and launch control centers were slated for demolition with the exception of Sites Delta-01 and Delta-09.These latter two sites were turned over to the National Park Service for preservation as part of the Minuteman Missile National Historic Site.In March 1994, Ellsworth welcomed the 34th Bomb Squadron, a geographically separated unit (GSU) that was awaiting airfield upgrades before it could return to its parent organization, the 366th Wing (366 WG), at Mountain Home Air Force Base, Idaho.