Illuminated only by moonlight, Staff Sgt. Edwin Caldera, 24, of Calhoun, Ga., right, and Spc. Johnathon Rife, of Gundy, Va., 22, and his explosive detection dog Taz, with the U.S. Army's Bravo Company... more 
Illuminated only by moonlight, Staff Sgt. Edwin Caldera, 24, of Calhoun, Ga., right, and Spc. Johnathon Rife, of Gundy, Va., 22, and his explosive detection dog Taz, with the U.S. Army's Bravo Company of the 25th Infantry Division, 3rd Brigade Combat Team, 2nd Battalion 27th Infantry Regiment based in Schofield Barracks, Hawaii, pull guard during a night mission Tuesday, Sept. 13, 2011 in Chapako in Kunar province, Afghanistan. (AP Photo/David Goldman) less 
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Associated Press | Photo By David Goldman
Tue, Sep 13, 2011 4:08 PM EDT