The US military has detected "highly unusual and unprecedented levels" of North Korean submarine activity and evidence of an "ejection test" in the days following Pyongyang's second intercontinental ballistic missile launch this month, a defense official told CNN on Monday.
원문출처 : http://www.cnn.com/2017/07/31/politics/north-korea-ejection-test-submarine-activity/index.html
원문출처 : http://www.cnn.com/2017/07/31/politics/north-korea-ejection-test-submarine-activity/index.html