President Donald Trump has pitched NATO into what could become its worst-ever crisis by threatening new tariffs against US allies who oppose his grab for Greenland against the will of its people.

Ukraine security talks may see breakthrough as U.S. NATO ambassador says 50-nation coalition nears agreement on comprehensive ...

The treaty that created NATO did not contemplate an attack by one ally on another. A seizure of Greenland by President Trump ...

The NATO security alliance that has protected Europe for decades finds itself with limited power to determine its own fate ...

Zelensky says sustained Russian strikes against Ukraine's energy grid show Putin is not serious about ending the war ...

With tensions increasing at Europe’s borders, the EU says its new defence measures will help it face Russia and other threats ...

For only the second time, Russia used a new ballistic missile that it says flies at 10 times the speed of sound and is ...

Trump’s threat to annex an autonomous part of Denmark has plunged NATO into an unprecedented situation: An alliance based on ...

European NATO members are willing to provide security guarantees to Ukraine to protect it from a future Russian invasion—but ...

The White House has said that 'utilising the ‌US military is ‍always an option at the commander-in-chief's disposal' ...

Russia says it used its new Oreshnik hypersonic missile and other weapons in a massive strike on Ukraine​. Ukrainian ...