Delegates from some 35 different countries visit historical land mark "Cathedral of Saint Martin" in the City of Mainz, Germany during Exercise COMBINED ENDEAVOR 2000. The Exercise is a Partnership for Peace (PfP) exercise hosted by Germany and is the largest information and communications systems exercise in the world which focuses primarily on Command, Control, Communications, and Computers (C4) interoperability testing and documentation. Exercise participants were given a tour of the Cathedral during their deployment to Germany

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Delegates from some 35 different countries visit historical land mark "Cathedral of Saint Martin" in the City of Mainz, Germany during Exercise COMBINED ENDEAVOR 2000. The Exercise is a Partnership for Peace (PfP) exercise hosted by Germany and is the largest information and communications systems exercise in the world which focuses primarily on Command, Control, Communications, and Computers (C4) interoperability testing and documentation. Exercise participants were given a tour of the Cathedral during their deployment to Germany. 2000-05-15. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6605195. (Accessed July 22, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2000-05-15) Delegates from some 35 different countries visit historical land mark "Cathedral of Saint Martin" in the City of Mainz, Germany during Exercise COMBINED ENDEAVOR 2000. The Exercise is a Partnership for Peace (PfP) exercise hosted by Germany and is the largest information and communications systems exercise in the world which focuses primarily on Command, Control, Communications, and Computers (C4) interoperability testing and documentation. Exercise participants were given a tour of the Cathedral during their deployment to Germany. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6605195
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/6605195>.
Note: These citations are programmatically generated and may be incomplete.