Army Gen. Frank Grass, outgoing Chief of the National Guard Bureau (CNGB), congratulates Air Force Gen. Joseph Lengyel, incoming CNGB, during the Change of Responsibility at the Pentagon Auditorium, Aug. 03, 2016. Lengyel assumed responsibility as the 28th Chief of the National Guard Bureau. (DoD photo by Army Sgt. James K. McCann)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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