Petty Officer 3rd Class Emerson Marsh, left, a corpsman with the Afghan National Army‚ 1st Brigade, 215th Corps Security Force Assistance Advisory Team and Sgt. Elise Fournier, an Army flight medic with DUSTOFF, grade homework while students take a written exam during the En Route Medical Care class at the DUSTOFF compound aboard Camp Dwyer, Helmand Province, Afghanistan. The class taught the medics to care for patients while in transit. DUSTOFF is an Army medevac unit deployed here.