Air Force Senior Airman Derek Peifer, 351st Air Refueling Squadron boom operator, conducts pre-fueling checks in support of exercise One Sky, over Poland Sept. 20, 2018. The One Sky exercise focused on interoperability with Polish counterparts and enhances the operational readiness of both nations.

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Size: 1731px × 1155px
Photo credit: © David Wa / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: air, aircrew, allies, america, archive, armed, army, defence, europe, force, forces, mildenhall, military, nato, navy, raf, refueling, reportage, service, serviceman, servicemen, sky, soldier, states, training, united, usa