U.S. service members participate in a motivational

U.S. service members participate in a motivational run around Camp Lemonnier during the Corporal’s Course at Camp Lemonnier, Djibouti, June 2, 2017. The course is a requirement for Marines in the enlisted grade of E-4, but here, all U.S. service members in the ranks of corporal, specialist, senior airman or petty officer third class were allowed to participate.(U.S. Air Force photo by Staff Sgt. Eboni Prince)