U.S. President Donald Trump clipped the wings of perhaps the most hawkish member of his inner circle on Tuesday, firing national security adviser John Bolton in a move expected to have repercussions for Japan and American foreign policy in Asia.

Trump, who said he had disagreed ¡°strongly¡± with Bolton on policy, announced via Twitter: ¡°I asked John for his resignation, which was given to me this morning.¡±

A replacement ¡ª the White House¡¯s fourth national security chief in less than three years ¡ª will be named next week, Trump said.