Royal Army (British) Corporal (CPL) Mike Heydon and CPL James Dunn, both communications technicians set up a network-switching hub at Lager Aulenbach, Germany, while participating in the US European Command (USEUCOM) -sponsored Exercise COMBINED ENDEAVOR. The Exercise is a Partnership for Peace (PfP) exercised 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