U.S. Army Spc. Montoya with the 900th Quartermaster Company, Las Cruces, N.M., provides security during a presence patrol while participating in Warrior Exercise (Warex) / Global Medic, Fort McCoy, Wis., July 16, 2013. Warex gives participating units an opportunity to rehearse military maneuvers an tactics such as security, convoy operations and quick reaction drills during simulated enemy attacks. Global Medic is an annual joint-reserve field-training exercise designed to replicate all facets of combat theater aeromedical evacuation support. (U.S. Air Force photo by Senior Airman Juan A. Duenas/Released)