Launching missiles from the submarine would greatly extend North Korea’s range. Latest intelligence estimates suggest that they will be able to put a nuclear bomb on the end of a missile by the end of next year. There is not a lot of time for the American government to execute a solution to protect the homeland from being phone Rible to an attack by this Rogue nation.
US detects ‘highly unusual’ North Korean submarine activity – CNN
https://apple.news/AUwGYMJbVRC2Aum96sMZ87w