U.S. Army Spc. Tylor Calhoun (2nd from right) provides security while fellow soldiers work to recover their heavy expanded mobility tactical truck wrecker from thick mud during a clearing operation near Combat Outpost Deh Yak in Afghanistan's Ghazni province on March 6, 2012. Calhoun is assigned to Company C, 1st Battalion, 2nd Infantry Regiment. U.S. and Afghan troops plan to disrupt insurgent movements into and through the area ahead of the spring fighting season.