Army Pfc. Deonte Jenkins, left, signal support systems specialist and fuel handler with the Headquarters and Headquarters Battalion 2-43 Air Defense Artillery, holds the deadman switch during fueling operations at Al Udeid Air Base, Qatar, Sept. 14, 2017. Jenkins is learning about the responsibilities of operating an R-11 refueling truck and the equipment and storage facilities that are vital to the refueling process. ( Air Force photo by Tech. Sgt. Amy M. Lovgren)

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