The vice chairman of the Joint Chiefs of Staff, Adm. James Winnefeld, said Wednesday persistent North Korean provocations could lead to an expansion of missile defenses in the Asia-Pacific region and that the United States, Japan and South Korea must continuously cooperate to address the threat. "We're encouraging our allies and partners to acquire their own missile defenses and to strengthen regional missile defense cooperation that will result in better performance than individual countries acting alone," Winnefeld said at a…
