170501-M-BT412-155.JPG - Critical skills operators with U.S. Marine Corps Forces, Special Operations Command train with freeze-dried plasma during a Raven pre-deployment exercise at Camp Shelby Joint Force Training Center, Miss., May 1, 2017. CSOs go through a condensed version of FDP training to familiarize themselves with the product for use in the field. (U.S. Marine Corps photo by Sgt. Salvador R. Moreno)