U.S. Army Pvt. Charles Shidler crawls through mud searching for the next covered fighting position during training for individual movement techniques at the Camp Ravenna Joint Maneuver Training Center in Ravenna, Ohio, on April 17, 2011. The technique is one of more than 200 common tasks that Shidler and about 3,600 other soldiers assigned to the 37th brigade must complete before they deploy to Afghanistan this fall to support Operation Enduring Freedom.