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U.S. Navy Sailors from the Robert M. Casey Medical and Dental Clinic set up a three-line articulating frame shelter during first-receiver operations training at Marine Corps Air Station Iwakuni, Japan, June 9, 2016. Provided by the Decontamination, Education and Consulting on Nuclear, Biological and Chemical Limited Liability Company, the course educates first receivers in conducting decontamination, field treatment and saving victims from chemical, biological, radiological and nuclear threats. (U.S. Marine Corps photo by Lance Cpl. Aaron Henson/Released)