August 30, 2007 PETERSON AIR FORCE BASE, Colo. – North American Aerospace Defense Command and U.S. Northern Command along with U.S. Pacific Command, the Department of Homeland Security as well as local, state and other federal responders will exercise their response abilities against a variety of potential threats during Exercise Vigilant Shield ‘08, a Chairman of the Joint Chiefs of Staff-designated, North American Aerospace Defense Command (NORAD) and U.S. Northern Command (USNORTHCOM)-sponsored, and U.S. Joint Forces Command-supported Department of Defense exercise for homeland defense and defense support of civil authorities missions. VS-08 will be conducted concurrent with Top Officials 4...