Operation Snowbird
U.S. Air Force Staff Sgt. Timothy Hemquist (left), a load master with the 109th Airlift Squadron, goes through a preflight checklist in Yuma, Ariz., Feb. 28, 2018. Operation Snowbird, a training exercise, enhances the 133rd Airlift Wing’s ability to deploy, execute and sustain rapid global mobility around the world. (U.S. Air National Guard photo Tech. Sgt. Austen R. Adriaens/Released)

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Photo by: Tech. Sgt. Austen R. Adriaens |  VIRIN: 180228-Z-IL540-1064.JPG