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(NECN) - North Korea is urging all foreign companies and tourists to leave the south, saying they are on the eve of a nuclear war.
But US officials say a direct attack on South Korea is unlikely and that the threats are really aiming to get changes to foreign policy and to boost the image of leader Kim Jong Un.
But are the real concerns for North and South Korea?
Peter Krause, assistant professor of political science at Boston College says countries need to take this seriously, but it is unlikely.
Watch the attached video for the full interview