Warfighting

Lance Cpl. Thomas Ratterman, chemical, biological, radiological and nuclear defense specialist with Combat Logistics Regiment 45, 4th Marine Logistics Group, Marine Forces Reserve collect samples of an unknown chemical substance during the assessment and consequence management team training exercise at Marine Corps Support Facility, New Orleans, Feb. 8, 2017. During the exercise, Marines practiced responding to a chemical threat. The Marines conducted area reconnaissance, sample collection and classification of unknown substances. (United States Marine Corps photo by Sgt. Ian Ferro/Published)