Mattis warns North Korea against any attack on US or its allies
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In an explicit warning to North Korea, US Defense Secretary Jim Mattis has asserted that any use of nuclear weapons by the North on the United States or its allies would be met with what he called an "effective and overwhelming" response.
US defense secretaries have long offered assurances to South Korea and Japan that the American nuclear "umbrella" will protect them, but Mattis's statement was perhaps more pointed than most. He made the remarks during an appearance with his South Korean counterpart, Defense Minister Han Min Koo.
