Grand Slam service members participate in the 24-hour prisoner of war and missing in action vigil run at the 379th Air Expeditionary Wing in Southwest Asia, Sept. 20, 2013. The United States League of Families POW/MIA flag remained in constant motion traveling 960 miles, symbolizing the commitment of the U.S. people, armed forces and government to never forget the sacrifices POW/MIAs have made. (U.S. Air Force photo/Senior Airman Bahja J. Jones)