A paratrooper signals to a wrecker operator to stop as they pull a mine-resistant, ambush-protected vehicle from the mud at the Joint Readiness Training Center on Fort Polk, La., Jan. 25, 2012. A paratrooper signals to a wrecker operator to stop as they pull a mine-resistant, ambush-protected vehicle from the mud at the Joint Readiness Training Center on Fort Polk, La., Jan. 25, 2012. SHARE: Download: Full Size (1.59 MB) Tags: photo essays Credit: VIRIN: 130236-Y-BQD80-732.jpg Photo Gallery