A Marine attempts to stop a simulated casualty from bleeding out from an abdominal laceration by applying bandages at Camp Lejeune N.C., March 10, 2016. Improvised explosive devices increase the risk of multiple-casualty situations due to their large area of impact. To prepare for a situation in which a corpsman needs assistance, treating injured Marines quickly, Marines go through the combat life-saver course to be able to provide similar life-saving care that a corpsman would administer. (U.S. Marine Corps photo by Lance Cpl. Luke Hoogendam/Released.) - A Marine attempts to stop a simulated casualty from bleeding out from an abdominal laceration by applying bandages at Camp Lejeune N.C., March 10, 2016. Improvised explosive devices increase the risk of multiple-casualty situations due to their large area of impact. To prepare for a situation in which a corpsman needs assistance, treating injured Marines quickly, Marines go through the combat life-saver course to be able to provide similar life-saving care that a corpsman would administer. (U.S. Marine Corps photo by Lance Cpl. Luke Hoogendam/Released.)