A German delegation were among the audience members during the opening ceremony of Exercise Combined Endeavor 2013, Sept. 12, 2013. Germany was among 40 nations represented for the annual exercise that takes place Sept. 13-26, 2013.Combined Endeavor, a U.S. European Command-sponsored event, explores and resolves multinational tactics, techniques and procedures and builds command, control, communications and computers (C4) planning experience and knowledge among participating nations.