Russian Foreign Minister Sergey Lavrov says the bid by U.S. President Donald Trump to take over Greenland poses a “deep crisis” for NATO and raises questions about the alliance’s preservation as a single military-political bloc.

Putin has long sought to undermine the western alliance that he sees as a threat.

Here's what it's like on an air base in Lithuania, on Russia's doorstep, where Spanish jets are deployed to support NATO air policing operations.

"The transatlantic alliance is over,” Kremlin aide and businessman Kirill Dmitriev posted on social media.

Britain is discussing with NATO allies how to enhance Arctic security against Russia and China. Transport Secretary Heidi Alexander said Sunday that these talks are routine and not a response to U.S.

While the first trilateral talks between Ukraine, Russia and the U.S. are a milestone, the issue of territorial concessions remains the key sticking point

Given the massive scale of Russian and Chinese strike drone production, the U.S. needs more interceptors in the price range of Sting and Surveyor to exceed strike drones in number and to enable spreading interceptors out geographically for broader protection. Even then, affordable interceptors alone won’t cut it.

Ukrainian, US and Russian negotiators held talks in the UAE in the first known meeting to be attended by all three countries since the war began.

Up to 25,000 Russian soldiers are being killed every month, NATO Secretary General Mark Rutte said this week.

Russia's "massive" military losses in Ukraine are unsustainable, NATO Secretary General warns, as conflict set to enter fourth year with no clear end in sight.

Grynkewich stated at Sweden’s National Security Conference that Russia and China are escalating joint patrols in the Arctic, extending their presence from the Russian northern coast to north of Alaska and near Canada.

NATO is planning to create an automated defense zone to protect European borders against