US Air Force STAFF Sergeant Orin Richardson, Air Force Space Command competitor, takes sharp aim with an M16A2 rifle, while range official US Air Force SENIOR AIRMAN Marc Hawsey, watches intently during the Combat Rifle portion of DEFENDER CHALLENGE 2000 at Lackland Air Force Base, Texas. Defender Challenge is the annual Air Force wide competition sponsored by Air Force Security Forces. This competition showcases the talents and capabilities of 13 international Security Forces teams in seven physical fitness, base defense, and policing skills over six days

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. US Air Force STAFF Sergeant Orin Richardson, Air Force Space Command competitor, takes sharp aim with an M16A2 rifle, while range official US Air Force SENIOR AIRMAN Marc Hawsey, watches intently during the Combat Rifle portion of DEFENDER CHALLENGE 2000 at Lackland Air Force Base, Texas. Defender Challenge is the annual Air Force wide competition sponsored by Air Force Security Forces. This competition showcases the talents and capabilities of 13 international Security Forces teams in seven physical fitness, base defense, and policing skills over six days. 2000-11-01. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6520334. (Accessed June 24, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2000-11-01) US Air Force STAFF Sergeant Orin Richardson, Air Force Space Command competitor, takes sharp aim with an M16A2 rifle, while range official US Air Force SENIOR AIRMAN Marc Hawsey, watches intently during the Combat Rifle portion of DEFENDER CHALLENGE 2000 at Lackland Air Force Base, Texas. Defender Challenge is the annual Air Force wide competition sponsored by Air Force Security Forces. This competition showcases the talents and capabilities of 13 international Security Forces teams in seven physical fitness, base defense, and policing skills over six days. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6520334
MLA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6520334>.
Note: These citations are programmatically generated and may be incomplete.