From left, Spc. Justin Heimsoth and Sgt. Chris Hagen fill sandbags for a machine gun position during Operation Southern Fist in Afghanistan's Spin Boldak district, Sept. 29, 2012. The Afghan-led operation focused on denying the enemy freedom of maneuver and to connect local villagers with the Afghan government. Both soldiers are infantrymen with the 2nd Infantry Division's 5th Battalion, 20th Infantry Regiment, 3rd Stryker Brigade Combat Team.