US President Donald Trump announced on Tuesday, September 10th that he fired his national security adviser John Bolton, referring to serious policy disagreements with the hardline aide.
"I informed John Bolton last night that his services are no longer needed at the White House. I disagreed strongly with many of his suggestions, as did others in the Administration," Trump tweeted, adding that he would announce the name of the new advisor next week.
Bolton was known for his harder line on issues such as North Korea and Iran, he also had advocated a tougher approach on Russia and Afghanistan.
The hawk of Trump administration's foreign policy had sometimes been at odds with Secretary of State Mike Pompeo, one of Trump's main loyalists, according to Reuters.
On the other hand, Bolton tweeted: "I offered to resign last night and President Trump said, "Let's talk about it tomorrow."
Trump had jokingly described Bolton's image as a warmonger, reportedly saying in one Oval Office meeting that "John has never seen a war he doesn't like."