Teri Schultz

NATO countries are warning Russia that they will retaliate -- in unspecified ways -- if the country continues to fly military aircraft in their airspace.

Russian fighter jets illegally entered Estonian airspace Friday. A senior Estonian official says it's time for NATO forces to consider shooting down the next Russian plane that crosses the line.

Russian fighter jets illegally entered Estonian airspace Friday. A senior Estonian official says it's time for NATO forces to consider shooting down the next Russian plane that crosses the line.

A plane carrying European Commission President Ursula von der Leyen was temporarily blocked from landing in Bulgaria due to what Bulgarian authorities say was Russian GPS jamming.

The European Union accuses Russia of allegedly interfering with the navigation system of a plane carrying the European Commission president on Sunday.

The Russia and Ukraine peace process has stalled and there is no deal in sight. But European leaders are nonetheless working to come up with ways to help secure Ukraine if and when a deal is made.

European leaders are expressing outrage after Russian attacks hit EU and U.K. buildings in Kyiv on Thursday.

Denmark's foreign minister summoned the top U.S. diplomat in the country after it was reported that at least three people with connections to President Trump have been carrying out covert operations.

Denmark's foreign minister summoned the top U.S. diplomat in the country after it was reported that at least three people with connections to President Trump have been carrying out covert influence operations in Greenland.

Following the meetings with Trump and Zelenskyy at the White House, European leaders have been urgently trying to figure out what they need to do next to end Russia's war in Ukraine.