German Army Sergeant (SGT) Tobias Trees and Private (PVT) Markus Zimmerman, runs cable while setting up a mobile 43m hydraulic-supported aerial antenna mast during the US European Command (USEUCOM) -sponsored Exercise COMBINED ENDEAVOR, held at Lager Aulenbach, Germany. 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