U.S Air Force Staff Sgt. Deanna Dickson, 192nd Security Forces patrolman, dries her boots after her first day of the Security Forces 9/11 Ruck March to Remember at Misty Mountain Camp Resort in Greenwood, Va., Aug. 25, 2011. Each unit had approximately 56 hours of daylight to complete their leg in time with the longest leg taking roughly 50 hours to complete. (U.S. Air Force photo by Tech. Sgt. Barry Loo/Released)