Infantrymen with 3rd Battalion, 15th Infantry Regiment, 2nd Infantry Brigade Combat Team, 3rd Infantry Division, run to an objective during a live-fire exercise on Fort Stewart, Ga., June 24, 2015. The brigade assumed the role of regionally aligned forces to U.S. Africa Command Oct. 1. (U.S. Army Photo by Sgt. Joshua Laidacker, 2nd IBCT, 3rd ID Public Affairs)