Sgt. Jeffrey Fahrenbach and Lance Cpl. Matthew

Sgt. Jeffrey Fahrenbach and Lance Cpl. Matthew Streitenberger, Chemical, Biological, Radiological, Nuclear defense specialists with the 11th Marine Expeditionary Unit, conduct CBRN sensitive site exploitation training here Feb. 7. During the training, a reconnaissance team patrolled a seemingly deserted simulated town to locate any potential contaminations and marked them with chemical lights. The sample team took samples from each marked site for further examination. (Marine Corps photo by Cpl. Demetrius Morgan/Released)