The United States has built a vast defense network of interceptors and radars across the Pacific to safeguard its homeland—including the westernmost territory of Guam—against evolving missile threats from nuclear-armed adversaries. A Newsweek map shows the locations of major land- and sea-based elements of the U.S. homeland missile defense web, from the West Coast to allied territories in East Asia, according to information disclosed by the U.S. Missile Defense Agency and official U.S. military