; and (2) 3 subordinate sector command centers at— (A) Joint Base Lewis-McChord, Washington, for the Western Air Defense Sector; (B) Rome, New York, for the Eastern Air Defense Sector; and (C) Canadian Forces Base North Bay, Ontario, for the Canadian Air Defense Sector; Whereas the missions of the North American Aerospace Defense Command are to provide aerospace warning, aerospace control, and maritime warning to defend North America; Whereas the North American Aerospace Defense Command and the current operations center of United States Northern Command are connected to a worldwide system of sensors that provides the Commander of the North American Aerospace Defense Command with a common operating picture of aerospace and maritime threats; Whereas the Cheyenne Mountain Air Force Station, Colorado, hosts the Alternate Command Center for both the North American Aerospace Defense Command and United States Northern Command; Whereas the Commander of the North American Aerospace Defense Command provides integrated tactical warning and attack assessments to the Government of the United States and the Government of Canada; Whereas the North American Aerospace Defense Command detects, intercepts, and, if necessary, engages air domain threats to North America using— (1) a network of space-based and ground-based sensors; (2) airborne radars, fighters, and helicopters; and (3) ground-based air defense systems; Whereas the Agreement Between the Government of the United States and the Government of Canada on the North American Aerospace Defense Command, done at Ottawa April 28, 2006 (TIAS 06–512), added a maritime warning mission to the slate of responsibilities of the North American Aerospace Defense Command, which entails a shared awareness and understanding of the ongoing activities conducted in United States and Canadian maritime approaches, maritime areas, and inland waterways