The U.S. ambassador to the United Nations has headed to the demilitarized zone dividing the two Koreas, ramping up pressure on North Korea after sanctions enforcement was dealt a heavy blow by a recent Russian veto.
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The U.S. ambassador to the United Nations has headed to the demilitarized zone dividing the two Koreas, ramping up pressure on North Korea after sanctions enforcement was dealt a heavy blow by a recent Russian veto.
