Marines carry a simulated casualty on a stretcher during

Marines carry a simulated casualty on a stretcher during unit PT March 8 on Naval Computer and Telecommunications Area Master Station during Exercise Guahan Shield. Guahan Shield is designed to facilitate multiservice engagements, set conditions for bilateral and multilateral training opportunities, and support rapid response to potential to theater crises and contingency operations in the Asia-Pacific region. The Marines are part of Combat Logistics Detachment 39, 9th Engineer Support Battalion, 3rd Marine Logistics Group, III Marine Expeditionary Force. (U.S. Marine Corps photo by Lance Cpl. Pete Sanders/released)