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U.S. military trainees don chemical warfare gear during basic training

Military trainees don their chemical warfare gear prior to entering the Nuclear, Biological, Chemical, Conventional Training Facility at Lackland Air Force Base, San Antonio, on September 16, 2002. The NBCC is part of week five of Basic Military Training's Warrior Week. U.S. Air Force photo by Robbin Cresswell, released. (Public domain photograph from This image was released by the United States Air Force with the ID 020916-F-LS942-004. This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.)