'Combat-ready' North Korea threatens US mainland, Hawaii

"SEOUL, South Korea (3rd UPDATE) - North Korea's military put its "strategic" rocket units on a war footing Tuesday, March 26, with a fresh threat to strike targets on the US mainland, Hawaii and Guam, as well as South Korea.

The move came as South Korea marked the third anniversary of the sinking of its naval vessel "Cheonan" by what Seoul insists was a North Korean submarine.

"All artillery troops including strategic rocket units and long-range artillery units are to be placed under class-A combat readiness," the Korean People's Army (KPA) supreme command said in a statement."

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