Active Shooter Exercise 131120-N-LE393-103 CAMP LEMONNIER, Djibouti (Nov. 20, 2013) U.S. Army Soldiers with 1st Combined Arms Battalion, 63rd Armor Regiment provide aid to simulated casualties during an active-shooter training exercise on Camp Lemonnier. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released) 131120-N-LE393-210 CAMP LEMONNIER, Djibouti (Nov. 20, 2013) U.S. Army Soldiers with 1st Combined Arms Battalion, 63rd Armor Regiment carry a simulated casualty during an active-shooter training exercise on Camp Lemonnier. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released) 131120-N-LE393-275 CAMP LEMONNIER, Djibouti (Nov. 20, 2013) U.S. Army Soldiers with 1st Combined Arms Battalion, 63rd Armor Regiment secure a perimeter during an active-shooter training exercise on Camp Lemonnier. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released) 131120-N-LE393-214 CAMP LEMONNIER, Djibouti (Nov. 20, 2013) Simulated casualties are brought to a casualty collection point during an active-shooter training exercise on Camp Lemonnier. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released) 131120-N-LE393-316 CAMP LEMONNIER, Djibouti (Nov. 20, 2013) U.S. Marines roleplaying as active-shooters walk through the living area on Camp Lemonnier during an active-shooter training exercise. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released) 131120-N-LE393-419 CAMP LEMONNIER, Djibouti (Nov. 20, 2013) Medical personnel at Camp Lemonnier's expeditionary medical facility provide aid to a simulated casualty during an active-shooter training exercise. (U.S. Navy photo by Mass Communication Specialist 1st Class Eric Dietrich/Released)