The United States has key economic and security interests in the Asia-Pacific region. In recent decades, the Asia-Pacific has experienced rapid economic growth, a wave of democratization, and the emergence of a web of regional and sub regional multilateral institutions. All these developments have contributed to enhancing the pace and prosperity of the region. The author highlights the significant and ongoing contribution of the U.S. Army in deterring war, executing smaller-scale contingencies, and shaping the security environment. He advocates a robust, pro- active Army presence for the foreseeable future. Such a presence will ensure the promotion and protection of U.S. national interests in the region.