Since the end of the war in Vietnam and the withdrawal of the American presence there, a marked realignment of power has taken place in Southeast Asia. The old rivalry between China and the United States has become a relationship of cautious rapprochement, while Sino-Soviet competition has been intensified by China's fear that the USSR will move to fill the power vacuum created by the U.S. departure. The United States no longer perceives a friendly Sino-Southeast Asian relationship to be as much of a danger to its security interests as it once did, but how that relationship develops remains...