North Korea army has declared invalid the armistice agreement that ended the Korean War in 1953, an official North Korean newspaper reports.
The move comes after a new joint military exercise between South Korea and the United States began.
More than 3,000 U.S. forces are taking part in Key Resolve, according to United States Forces Korea.
North Korea has called the annual training exercises "an open declaration of a war," but South Korea says it notified Pyongyang that the drills "are defensive in nature."
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