John Volkmer (center), a tactical communications integration team instructor with the Fort Hood Signal University, demonstrates how to hot melt fiber optic cables during a fiber optic and tactical fiber optic cable installer course held for Soldiers of 69th Air Defense Artillery Brigade Aug. 4, on Fort Hood, Texas. ( Army Photo by Staff Sgt. Kimberly Lessmeister/ 69th ADA Brigade Public Affairs Office)

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Size: 1800px × 1200px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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