© French Capts. Christophe Michelet and Yannick Collin recieves audio and visual comfirmation from their regional group in France during exercise Combined Endeavor 2007 at Lager Aulenbach, Baumholder, Germany, April 27, 2007. The exercise is the largest se curity cooperation and communications and information systems military exercise in the world, with participation from more than 1,200 military and civilian personnel from 42 countries and two multi-national organizations. (U.S. Air Force photo by Senior Airman Dayton Mitchell) (Released)