North Korea Threatens Military Strike, End to 1953 Armistice.

May 27 (Bloomberg) — North Korea threatened military action in response to South Korea joining an anti-proliferation program and said it’s no longer bound by the 1953 armistice that ended the Korean War.

South Korea’s actions are tantamount to a “declaration of war,” the North’s official Korean Central News Agency said in a statement today. North Korea said it can’t guarantee the safety of ships passing through its western waters near the maritime border with the South.

North Korea tested a nuclear weapon on May 25 and has fired five short-range missiles in two days, drawing international condemnation.