Army Pfc. Anthony Zendejas IV, a Video Production and Documentation (VPD) student from the Defense Information School, Fort Meade, Md., videotapes the start of the 18th Annual Security Forces Ruck March, Feb. 25, 2017, at the Air Mobility Command Museum on Dover Air Force Base, Del. Zendejas and three other VDP students on his team chose to documented the 6.2 mile ruck march on Dover AFB commemorating the Korean War Battle of the Chosin Reservoir, November-December 1950. (U.S. Air Force photo by Roland Balik)