Flight data showed how American and British reconnaissance aircraft flew from England toward Russia on Monday.

U.S. ambassador to NATO Matt Whitaker weighs in on the alliance paying for more weapons for Ukraine on 'The Story.'

President Trump is hosting NATO Secretary General Mark Rutte at the White House on Monday as the U.S. agrees to sell new and more weapons to Europe and Ukraine.

Ivo Daalder, a senior fellow at Harvard Belfer Center, says that President Donald Trump realizes that he needs to change course because the Russian leader has been playing him "for years."

President Donald Trump is anticipated to meet with NATO chief Mark Rutte, make a "major" announcement on Russia, and join an AI and energy summit during his 26th week in office.

NATO Secretary General Mark Rutte warned on Wednesday that countries such as Brazil, China and India could be hit very hard by secondary sanctions if they continued to do business with Russia.

And if NATO’s unity wavers, and deterrence fails, then they’re prepared to fight. Making the world a better place starts with average people making small decisions. That’s true in the Baltics, and it’s true in the United States,

The Kremlin has been left stunned after a former key ally has said it is planning to quit a Russian-backed military alliance. The Collective Security Treaty Organization (CSTO) is Russia 's version of NATO, whose members are mostly former Soviet states.