Col. Brian Schafer, 53rd Test and Evaluation Group commander, speaks to the crowd during the group’s change of command ceremony at Nellis Air Force Base, Nev., July 11, 2017. The mission of the 53rd TEG is to provide the warfighter with the latest in software, hardware, weapons and tactics, techniques and procedures. (U.S. Air Force photo by Airman 1st Class Andrew D. Sarver/Released)
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