U.S. Air Force Staff Sgt. Christopher Leonard, a paramedic assigned to the 633rd Medical Operations Squadron, demonstrates how to give a patient IV therapy to Airman 1st Class Lindsey Schmalfeldt, an aerospace medical technician assigned to the 633rd MDOS, at Langley Air Force Base, Va., March 7, 2016. Technicians–in-training must obtain basic skills in their career field prior to reporting to their next duty station. (U.S. Air Force photo by Senior Airman Brittany E. N. Murphy)