Soldiers assigned to 3rd Cavalry Regiment plant stakes into the ground using a picket pounder in order to set up concertina wire during Decisive Action Rotation 18-04 at the National Training Center in Fort Irwin, Calif., Feb. 13, 2018. National Training Center Decisive Action Rotation 18-04 is designed to test that capabilities of 3rd Cavalry Regiment against similarly equipped opposing threat. ( Army photo by Spc. Dana Clarke, Operations Group, National Training Center)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: boundary, center, concertina, desert, fort, irwin, national, ntc, picket, pounder, security, soldiers, training, wire