U.S. Soldiers determine an azimuth before participating in a daytime land navigation course while competing for the Expert Field Medical Badge at Joint Base Lewis-McChord, Wash., April 10, 2013. The U.S. Army Expert Field Medical Badge is awarded to Soldiers in medical professions who pass a variety of tests designed to measure proficiency in medical procedures, tactical skills and physical conditioning. (U.S. Army photo by Sgt. Sarah E. Enos/Released)