Air Force Staff Sgt. James Terrell, left, and Senior Airman Bobby Chambers, students attending the Engineering Installation vehicle training class, guide a maintenance hole in place Dec. 13, 2017, at the Air National Guard Schoolhouse, Fort Indiantown Gap, Pennsylvania. Airmen utilized the training they have learned from rigging and vehicle operation to install maintenance holes underground for the placement of fixed wiring. ( Air National Guard photo by Staff Sgt. Tony Harp/Released)

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Size: 5520px × 3680px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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