Silent Sentinels: 90th MW alternate command post
Staff Sgt. Bryan Thompson, 90th Munition Squadron munitions operations NCO in charge, stands beside a M1 Pack Howitzer artillery cannon at F.E. Warren Air Force Base, Wyo., Oct. 31, 2016. This is the last remaining active duty Air Force artillery cannon still in use today for official ceremonies on the base. The 90th MUNS mission is to enable nuclear deterrence by maintaining combat ready munitions in defense of global freedoms safely, securely and effectively. (U.S. Air Force photo by Staff Sgt. Christopher Ruano)

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Photo by: Staff Sgt. Christopher Ruano |  VIRIN: 161031-F-VS255-1014.JPG