U.S. Air Force Senior Airman Keith Libby, right, 379th Expeditionary Medical Group combat medical technician, ensures his patient is doing well after intravenously infusing a saline bag into her arm, while Master Sgt. Beverly Lutz, center, 379th EMDG Emergency Room, Immunizations and Primary Care element chief, provides oversight during a training exercise Nov. 14, 2012. Combat medics always have a smile on their face ensuring their patients are at ease while under their care. (U.S. Air Force photo/Senior Airman Joel Mease/Released)