Army Spc. Jonathen Upham, 172nd Chemical, Biological, Radiological, and Nuclear Company, 2nd Chemical Battalion, 48th Chemical Brigade, collects dirt samples at the Umatilla Training Center, Ore., May 7, 2017. Dirt samples are extracted to test for potential hazardous materials in an area.

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Keywords: 20th, 48th, air, america, archive, armed, army, brigade, cbrne, center, chemical, command, defence, dragon, employee, federal, fire, force, forces, government, military, navy, oregon, reportage, service, serviceman, servicemen, states, training, umatilla, united, usa