The 706th Strategic Missile Wing (706 SMW) was established on 13 February 1958 at Francis E. Warren AFB, Wyoming. Preparation for intercontinental ballistic missile operations at F.E. Warren began on 15 January 1958 when Air Research and Development Command established the Strategic Missile Wing (Provisional). On 1 February, Strategic Air Command took over F.E. Warren from Air Training Command and replaced the provisional wing with its Major Command controlled (MAJCON) 4320th Strategic Wing (Missile). The 4320th was a support organization, and was assigned the 389th Air Base Group to act as the host for units at F.E. Warren.