North Korea said Monday it test-fired improved ballistic missiles carrying cluster warheads the previous day, with the country's leader Kim Jong Un supervising the launches.The five Hwasongpho-11 Ra surface-to-surface tactical ballistic missiles struck the target area about 136 kilometers away, the official Korean Central News Agency said.Japan and South Korea said Sunday that several short-range ballistic missiles were fired from the Sinpo area toward the Sea of Japan, with the South Korean military stating they may have been submarine-launched."The purpose of the test-fire is to verify th…READ FULL ARTICLE