FIREFIGHTING DRILL U.S. Marines conduct a mass casualty drill to practice responding to an artillery strike on Camp Dwyer in Afghanistan's Helmand province, Jan. 27, 2011. The firefighting and aircraft rescue Marines are assigned to Marine Wing Support Squadron 373, Camp Dwyer detachment. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 496363-E-DSP87-657.jpg Photo Gallery