South Carolina Air National Guard Senior Master Sgt. Ralph Guyton (right), with the 169th Security Forces Squadron at McEntire Joint National Guard Base, S.C., hands out dog tags with the names of every fallen South Carolina National Guardsmen to Airmen participating in a nine-mile ruck march around the base April 11, 2015. The ruck march was organized as a team-building event to honor fallen South Carolina National Guardsmen and Air Force Security Forces members who have died in the War on Terror. (U.S. Air National Guard photo by 2nd Lt. Stephen D. Hudson/Released)