North Korea said Saturday it test-fired a tactical ballistic missile equipped with a new autonomous navigation system, with the drill overseen by leader Kim Jong Un, according to the country's official Korean Central News Agency.The South Korean military detected Friday the launch of what were believed to be short-range ballistic missiles fired toward the Sea of Japan from an area near North Korea's eastern port city of Wonsan. They were estimated to have flown about 300 kilometers before falling into the sea.KCNA said the accuracy and reliability of the autonomous navigation system was ver…READ FULL ARTICLE