Marine Corps Lance Cpl. Bert J. Hill assigned to Chemical, Biological, Radiological and Nuclear (CBRN) Defense, 1st Marine Logistics Group, uses caution tape to cordon off a simulated contaminated area during a CBRN Defense challenge on Marine Corps Air Station Miramar, San Diego, Calif., April 28, 2015. The training sustained the Marines' proficiency in conducting operations while protecting themselves against the threat of CBRN contamination. ( Marine Corps photo by Cpl. Laura Y. Raga/ RELEASED) CBRN Challenge 150430-M-HU038-124

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Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
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