Soldiers Top Border Wall With Concertina Wire

Part of my research on ways for civilians to secure the border - US Military video: Video by Airman 1st Class Daniel Hernandez
DoD Support to CBP Along the SWB
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Soldiers with the 541st SAPPER Company, place concertina wire on a border gate at Donna Rio Bravo international Bridge near Donna, Texas. U.S. Northern Command is providing military support to the Department of Homeland Security and U.S. Customs and Border Protection to secure the southern border of the United States. (US Air Force photo by Airman First Class Daniel A. Hernandez)