North Korea makes threat after missed nuclear date
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North Korea said on Friday it would boost  its war deterrent, a day after the United States said it was  sending its nuclear envoy back to Asia to discuss an atomic  disarmament deal on which Pyongyang has missed a deadline.
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North Korea could miss a year-end deadline to fully account for its nuclear arms program, South Korea said on Thursday, while a separate report cited the North's unhappiness at the pace of energy aid.
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North Korea has warned Japan that it will treat economic sanctions as a &quot;declaration of war&quot; and threatens to try to exclude Tokyo from six-party talks on Pyongyang&#39;s nuclear arms programs.
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South Korea said on Wednesday it was gravely concerned over North Korea's plans to test a nuclear bomb, with the United States saying the move would be "an unacceptable threat" to world peace.
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North Korea's neighbors scrambled Wednesday to forge a common front against Pyongyang's threatened nuclear test, with South Korea warning of a regional atomic arms race that could upend the regional balance of power.
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An increasingly isolated North Korea said  on Tuesday it would conduct its first-ever nuclear test,  blaming a U.S. "threat of nuclear war and sanctions" for  forcing its hand.
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There is concern in Japan and South Korea that North Korea might be preparing to launch a ballistic missile. Officials in both Japan and South Korea say that since Tuesday, they have detected signs of activity
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North Korea appeared close Sunday to test-firing a long-range missile capable of reaching the United States, prompting the White House to warn of an appropriate response and Japan to threaten a &quot;fierce&quot; protest to the United Nations.
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North Korea on Monday blamed the United States for the stalemate in talks on its nuclear weapons programs, and warned it would use a &quot;war deterrent force&quot; if Washington brought the nuclear dispute before the UN Security Council.
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Japan on Wednesday sought to secure a U.N. Security Council warning to North Korea that there would be consequences if it conducted a nuclear test.
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North Korea's state media warned Friday the communist nation would bolster its "war deterrent," accusing the United States of plotting a nuclear war, as the world awaited Pyongyang's explanation about its failure to meet a nuclear deadline.
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SEOUL - North Korea set three conditions on Friday to be met before it would consider returning to six-party talks on its nuclear programmes.
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North Korea says it could suspend operations at its nuclear reactor once a first aid shipment arrives.
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SEOUL, March 2 -- South Korea on Friday added pressure on North Korea to comply with an international disarmament agreement, refusing the impoverished nation's demand to restore full aid shipments until after its main nuclear reactor is shut down.
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SEOUL/TOKYO  - North Korea threatened on Saturday  to double the size of its nuclear deterrent and the United  States rejected its conditions for a resumption of talks,  leaving the two nations in a dangerous stalemate.
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Japan on Tuesday warned it might sanctions against North Korea after accusing the communist country of failing to properly investigate the fates of Japanese citizens it kidnapped years ago.
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North Korea has successfully tested new short-range missiles and is close to making them operational, posing a threat to South Korea and Japan, a senior US defence official said.