Sgt. Travis Smith, 223rd Military Police Det. (Fort Monroe), is evaluated by Michael Holland, assistant chief of hazmat, health, and safety, while he performs cardio pulmonary resuscitation and demonstrates effective use of an automated external defibrillator at Fort Eustis, Va., Aug. 18, 2011. Soldiers from six Training and Doctrine Command units from across the United States battled for bragging rights as this year’s “top cop.” (U.S. Air Force photo by Staff Sgt. Antoinette Gibson/RELEASED)