U.S. Air Force Lt. Col. Mark Slabaugh, 31st Surgical Squadron orthopaedic surgeon, dons protective surgical equipment in the operating room, Aug. 20, 2015, at Aviano Air Base, Italy. Slabaugh performs approximately 20 surgeries a month like shoulder stabilizations, tendon rupture repairs or three-hour-long knee surgeries. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)