RIYADH, Saudi Arabia — President Trump said Tuesday that Secretary of State Marco Rubio will represent him at Russia-Ukraine ...

US Secretary of State Marco Rubio warned Tuesday that Syria could be weeks away from a fresh civil war of "epic proportions," ...

U.S. Secretary of State Marco Rubio has arrived in Turkey on May 14 ahead of peace talks planned between Ukraine and Russia.

Euclid is a six-year mission by the European Space Agency (ESA) aimed at mapping the dark universe by analyzing the positions ...

U.S. Secretary of State Marco Rubio and his NATO counterparts meet in Turkey to prepare a pivotal summit of alliance leaders next month that will set the course for future European security as America ...

The secretary of state said that terrorism and weapons sanctions would remain in place if Iran’s other malign activity is not ...

Officials from Ukraine and Russia met Friday in Turkey for the first direct peace talks since Russia’s invasion in February ...

Trump sparked surprise earlier this week when he suggested he might travel to Turkey from the UAE if progress was made in the talks on Thursday, but it was never previously suggested that the U.S.

U.S. Secretary of State Marco Rubio said on Thursday the only way a breakthrough will happen in the efforts to end Russia's ...

A landmark meeting in Antalya follows Trump’s surprise decision to lift Syria sanctions, handing Ankara a diplomatic victory.

The secretary of state stressed on Sunday that President Donald Trump must speak with his Russian counterpart to secure a deal.

NATO members are set to agree to a goal to increase their defense spending level to 5% of their GDP as a means to address a ...