Secretary of State Marco Rubio told European counterparts Thursday the US will participate in post-war security guarantees ...

Secretary of State Marco Rubio will lead a newly formed joint commission that will work on forging a security guarantees ...

Russian President Vladimir Putin agreed to allow the U.S. and its European allies to offer Ukraine security guarantee ...

President Donald Trump has taken aim at MSNBC host Nicolle Wallace in a bizarre social media rant. The drama started when ...

Rubio replied that the “goal here” is to reach a “peace agreement,” rather than “to stage some production for the world and ...

FOX News Channel's Jesse Watters interviews Secretary of State Marco Rubio about the White House meeting on Monday between ...

We will work with our European allies and non-European countries, by the way, to build such a security guarantee,' says US Secretary of State - Anadolu Ajansı ...

Secretary of State Marco Rubio said Sunday that a temporary ceasefire agreement between Ukraine and Russia is “not off the ...

The secretary of state and national security adviser will meet with European counterparts on Thursday in an effort to advance ...

The following is the full transcript of an interview with Secretary of State Marco Rubio that aired on "Face the Nation with ...

Trump hosted Putin in Alaska summit on Ukraine war but failed to secure ceasefire, though both sides reported progress and planned future meetings ...

BRUSSELS -- U.S. Secretary of State Marco Rubio and the Trump administration's new envoy to NATO are seeking to reassure wary members of the U.S. commitment to the alliance.