N Korea threatens Japan on sanctions
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North Korea says it will treat as a "war declaration" any sanctions imposed by Japan in a kidnapping row.
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Japan's top government spokesman says Tokyo is stepping up monitoring of North Korea amid speculation that the communist nation could carry out a nuclear test as early as this weekend.
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North Korea threatened on Saturday to double the size of its nuclear deterrent if the United States did not drop what Pyongyang sees as a confrontational policy aimed at unseating the communist leadership there.
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Japan warned North Korea on Sunday of "a   harsh response" from Tokyo and Washington if it went ahead with   the launch of a long-range missile.
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Japan has brushed off a North Korean statement saying it would consider sanctions imposed by Tokyo &quot;a declaration of war,&quot; and renewed calls for penalties on the North for failing to account fully for Japanese citizens it abducted decades ago.
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North Korea lashed out Tuesday at ongoing U.S.-South Korean military drills and warned that it could take retaliatory action amid renewed concern that the communist nation may be preparing to test a nuclear bomb.
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North Korea threatened yesterday to turn Japan into a &quot;nuclear sea of fire&quot; if it comes under attack from the United States.
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Reclusive 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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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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TOYKO, Japan -- North Korea has warned Japan that it would treat economic sanctions against the nation as a &quot;declaration of war&quot; as a row brews over the remains of abductees.
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Japan has warned North Korea it would view any test-fired missile landing on Japanese soil as an attack, after reports the secretive nation was preparing to jangle international nerves with a new missile launch.
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Japanese Foreign Minister Nobutaka Machimura said on Thursday economic sanctions against North Korea were "one option," but added that care was needed in deciding whether Tokyo should take such a step immediately.
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Japan will ask North Korea to relaunch probes into the fate of Japanese citizens it abducted after false evidence presented earlier led to calls for sanctions against the communist state, reports said.
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North Korea on Sunday accused Japan of using anti-terrorism moves as an excuse for militarism which put the Korean peninsula at risk of invasion.
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Japan said Monday it was considering whether a pre-emptive strike on the North&#039;s missile bases would violate its constitution, suggesting it could take stronger action against the reclusive regime if the U.N. Security Council rejects its resolution calling for sanctions.
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Japanese Foreign Minister Taro Aso warned  North Korea on Sunday if it launched a missile that dropped on  Japan, Tokyo would regard it as an attack on Japan.
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Japanese Foreign Minister Nobutaka Machimura said on Thursday economic sanctions against North Korea were &quot;one option,&quot; but added that care was needed in deciding whether Tokyo should take such a step immediately.