Marines with Combat Logistics Battalion 26, 26th Marine Expeditionary Unit, rush injured Marines on litters to an MV-22B Osprey during a mass casualty training exercise at Fort Pickett, Va., Sept. 14. A mass casualty is defined as any number of casualties produced in a relatively short period of time that overwhelms the emergency medical services and logistical support. This training is part of the 26th MEU?s pre-deployment training program. CLB-26 is one of the three reinforcements of 26th MEU, which is slated to deploy in 2013. - Marines with Combat Logistics Battalion 26, 26th Marine Expeditionary Unit, rush injured Marines on litters to an MV-22B Osprey during a mass casualty training exercise at Fort Pickett, Va., Sept. 14. A mass casualty is defined as any number of casualties produced in a relatively short period of time that overwhelms the emergency medical services and logistical support. This training is part of the 26th MEU?s pre-deployment training program. CLB-26 is one of the three reinforcements of 26th MEU, which is slated to deploy in 2013.

The hospital corpsman emblem. Corpsmen are the Navy and Marine Corps' enlisted medical specialists. Battlefield corpsmen are largely responsible for the decreased number of casualties dying from combat wounds in the Long War, a ratio lower than that of recent 20th-century wars, including Operation Desert Storm. - The hospital corpsman emblem. Corpsmen are the Navy and Marine Corps' enlisted medical specialists. Battlefield corpsmen are largely responsible for the decreased number of casualties dying from combat wounds in the Long War, a ratio lower than that of recent 20th-century wars, including Operation Desert Storm.