The Vice President of the USA, Mike Pence, has said US-North Korea relations have changed. Mr Pence said that the USA has been very patient with North Korea for many years. It tried talking to end North Korea's nuclear weapons testing. However, President Donald Trump promised he would stop North Korea developing nuclear weapons. He said: "Since 1992, the US and our allies have stood together for a denuclearized Korean Peninsula. We hope to achieve this objective through peaceable means. But all options are on the table." One of these options is to attack North Korea's missiles.
Mr Pence's warning came the day after North Korea tested another missile. Pence said North Korea's missile testing is a danger to the USA because soon, North Korea will have missiles that can reach America. North Korea's Vice Foreign Minister said his country would continue to test missiles. He said: "We'll be conducting more missile tests on a weekly, monthly and yearly basis." He added that an "all-out war" would happen if the US took military action. North Korea's ambassador to the UN said the US was "disturbing global peace and stability" and was using "gangster-like logic" in its foreign policy.