U.S. Army Staff Sgt. Daniel Nelson participates in a training exercise on Forward Operating Base Farah in Afghanistan's Farah province, Sept. 2, 2012. Nelson is assigned to Provincial Reconstruction Team Farah.
U.S. Marines exit a compound in Agha Ahmad in Afghanistan's Helmand province, Aug. 27, 2012. The Marines are assigned to Scout Sniper Platoon, Alpha Company, 1st Battalion, 1st Marines, Regimental Combat Team 6.
U.S. Army Sgt. Matthew Armstrong, left, provides security during a key leader engagement in Farah City in Afghanistan's Farah province, Aug. 29, 2012. Armstrong is assigned to Provincial Reconstruction Team Farah.