Second Lt. Sean Long, 11th Security Forces Squadron, hands a security forces guide-on to Chief Master Sgt. Rich Sherman, 436th Security Forces Squadron, Sept. 1, 2011, in Wells Tannery, Pa. Wells Tannery was the beginning of Dover Air Force Base, Del.,’s part in the 9/11 Ruck March to Remember, which started in San Antonio and ends at "Ground Zero" in New York City on Sept. 11, 2011. (U.S. Air Force Photo/Airman 1st Class Jacob Morgan)