A Navy corpsman with 3rd Battalion, 3rd Marine Regiment, based out of Marine Corps Base Hawaii, Kaneohe Bay, applies first aid to a simulated casualty at Kiwanis Park in Yuma, Ariz., Friday, Oct. 10, 2014. The sailor’s application of first aid was in part of the massive casualty evacuation portion of the Assault Support Tactics 3 exercise, an event in the curriculum of Weapons and Tactics Instructor course 1-15, operated by Marine Aviation Weapons and Tactics Squadron 1, based out of Marine Corps Air Station Yuma, Ariz. Technical Theatre majors at Yuma’s Arizona Western College contributed to the AST 3 by using cosmetics to create lifelike wounds on simulated causalities.