Air Force Tech Sgt. Mark Perkins, a boom operator with the 121st Air Refueling Wing, Ohio Air National Guard prepares a KC-135R Stratotanker for take-off during a training sortie in support of Emerald Warrior 17 March 7, 2017. Emerald Warrior is a Special Operations Command exercise during which joint special operations forces train to respond to various threats across the spectrum of conflict.

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Size: 1195px × 1673px
Photo credit: © Chuck Little / Alamy / Afripics
License: Licensed
Model Released: No

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