Silent Sentinels: 320th MS Missileers
A Union Pacific train is passed by 320th Missile Squadron missileers traveling to a missile alert facility from F.E. Warren Air Force Base, Wyo., Nov. 5, 2016. Missileers can travel through up to three states to reach their assigned MAF. (U.S. Air Force Photo by Staff Sgt. Christopher Ruano)

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Photo by: Staff Sgt. Christopher Ruano |  VIRIN: 161105-F-VS255-1022.JPG