U.S. Army Sgt. Dillon Diener, squad leader for a security team in 3rd Platoon, C Company, 2nd Battalion, 2nd Infantry Regiment, recites the oath of enlistment on August 4, 2013 during his re-enlistment ceremony in Zabul province, Afghanistan. Diener, from Mt. Pleasant, Iowa, has two sons, Brendon and Landon, with his wife, Jackie. (U.S. Army National Guard photo by Sgt. Tim Morgan)