U.S. Navy Ensign Julia Mauer, a nurse with 2nd Medical Battalion, tends to a simulated casualty during a mass casualty training scenario at Camp Lejeune, N.C., March 25, 2016. The training was held to evaluate medical personnel capabilities in a field environment with limited manpower and resources. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released) - U.S. Navy Ensign Julia Mauer, a nurse with 2nd Medical Battalion, tends to a simulated casualty during a mass casualty training scenario at Camp Lejeune, N.C., March 25, 2016. The training was held to evaluate medical personnel capabilities in a field environment with limited manpower and resources. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released)