The withdrawal of Mohammed bin Salman's main Middle Eastern ally means he will turn to Washington. Can Trump help the Saudi prince's Yemen campaign?
John Bolton,the US national security adviser says Brexit offers a chance for Britain to become a"strong and independent country".
"Bolton should not be called a security adviser who works to secure security,but an adviser for security destruction,"says a spokesman.
The United States sees signs the Syrian government may be using chemical weapons,including an alleged chlorine attack last Sunday.
At a meeting of President Donald Trump's top national security aides,acting Defence Secretary presented an extraordinary military plan.
Russian Ambassador rejected an assertion this week by US National Security Adviser John Bolton that the 1823 Monroe Doctrine is"alive and well."
Trump's national security adviser says China's attempts to influence opinion in the US and Australia"is far greater in magnitude"than any seen in history.
People gathered on the streets of Venezuela's capital on Wednesday,waving their nation's flag and demanding Nicolas Maduro step down from power.
Donald Trump's national security adviser has cast fresh doubt on the US President's announced withdrawal of American troops from Syria.
US National Security Advisor John Bolton said on Monday Russian meddling in US elections had hardly had any real effect.
President Donald Trump's chief of staff and his national security adviser engaged in a profanity-laced argument outside the Oval Office.