U.S. Air Force Reserve Senior Airman Akwasi Agyemang, 445th Aeromedical Staging Squadron medical technician, presses an intravenous needle against the arm of Reserve Airman 1st Class Saschia Johnson, 445th Aerospace Medicine Squadron medical technician, for a training simulation during their tour at USAF Hospital Langley at Langley Air Force Base, Va., July 21, 2014. Agyemang is completing biannual refresher training at the hospital to ensure he is fully qualified to deploy if called upon. (U.S. Air Force photo by Airman 1st Class Devin Scott Michaels/Released)