U.S. Soldiers from the 374th Combat Engineer Company, Vallejo, Calif., and the 1982 Forward Surgical Team, Niagara Falls, N.Y., conduct presence patrol training under the cover of M83 smoke in support of Warrior Exercise 86-13-01 (WAREX)/Exercise Global Medic, Fort McCoy, Wis., July 22, 2013. The WAREX provides units an opportunity to rehearse military maneuvers and tactics such as security, convoy operations, and quick reaction drills. Held in conjunction with WAREX, Global Medic is an annual joint-field training exercise designed to replicate all aspects of theater combat medical support. (U.S. Air Force photo/Staff Sgt. Heather Cozad)