Photos

Corporal Chase Roesner, a chemical, biological, radiological and nuclear defense specialist with Combat Logistics Regiment 17, 1st Marine Logistics Group, pops a capsule of tear gas to train Marines aboard Camp Pendleton, Calif., Jan. 7, 2014, against potential CBRN threats. Marines received training on conducting reconnaissance and identifying potential CBRN threats, operating equipment designed to protect personnel from chemical threats and decontamination procedures ensure Marines do not become casualties.