442nd Medical Squadron officer, Maj. Debra Pease, chief nurse, assesses Airman 1st Class Matthew Bounds' head injury as she prepares him for treatment. To add a sense of realism, moulages that mimic real wounds or injuries are used.The 442nd MDS is part of the 442nd Fighter Wing, an Air Force Reserve Command A-10 Thunderbolt II unit based at Whiteman Air Force Base, Mo. (US Air Force photo/Senior Airman Dani Wolf)