Air Force Materiel Command Deputy Commander Maj. Gen. Warren Berry speaks to troops about the importance of training for the mission during a base training exercise at Tinker Air Force Base, Oklahoma, Jan. 31, 2018. The AFMC senior leader's visit took place as part of a week-long, command-wide exercise that began Jan. 29. (U.S. Air Force photo/Kelly White)

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Photo by: Kelly White |  VIRIN: 180131-F-RI777-1235.JPG