White House National Security Adviser Bolton says he has to defend his allies, South Korea and Japan. China has warned it will not sit down.
Sohn Sohn is a correspondent in Washington.
In an interview with Fox News, Bolton's national security adviser cited China's threat as to the new deployment of medium-range missiles in Asia.
China has deployed thousands of medium-range missiles without any restrictions. He says the United States is now defending US troops deployed throughout the United States and allies such as South Korea and Japan.
It suggests that South Korea and Japan could be considered as a new missile deployment area for China.
Earlier, US Secretary of State Espera wanted to deploy a medium-range missile in Asia within a few months, but he did not specify the location.
[Esper / US Secretary of Defense (Last 3 Days): (In Asia) I want a missile deployment, but to be clear, it's a conventional missile. I want to deploy in a few months.]
Bolton says North Korea has agreed to "not launch intercontinental ballistic missiles" between North Korean leaders.
He said the launch was not a breach of promise, but he also told him not to cross the line, saying Trump was watching very carefully.
Bolton Previews Missiles in Korea and Japan Alliance defense emphasis
White House National Security Adviser Bolton says he has to defend his allies, South Korea and Japan. China has warned it will not sit down. Sohn Sohn is a correspondent in Washington.