NATO aircraft were scrambled Sunday night to respond to a Russian attack on Ukraine, the Polish military said Monday.

NATO chief Mark Rutte is pushing the Allies to swiftly build up their jet fighters and missiles to avert an all-out war with ...

A Norwegian P-8A "Poseidon" flew close to Russia's major submarine hubs in the Murmansk region before heading to the ...

Business Insider got access to a NATO AWACS flight for an eight-hour surveillance mission over Eastern Europe.

Russian President Vladimir Putin's war in Ukraine and President Trump's tough stance on NATO have 'energized' the alliance ...

NATO's enhanced ground capabilities in the Baltic region spark Russian warnings as military focus intensifies on Kaliningrad ...

While there are currently no plans for Austria to seek membership in NATO, the foundation for joining the alliance may already be in place.

General Christopher Donahue, commander of U.S. Army Europe and Africa, said allies could seize Kaliningrad "in a timeframe ...

Russia’s arms production has significantly ramped up, but NATO still holds key advantages in modern artillery systems and ...

RFE/RL and the Conflict Intelligence Team (CIT), an open-source intelligence group, analyzed Russian and Western weapons production to assess whether Russia really has a twelvefold lead over the US ...

F or the second time in a week, NATO member Poland has scrambled its aircraft in response to a widespread Russian attack on ...

Officials say Russian glide bombs and ballistic missiles have struck a Ukrainian prison and a medical facility as Russia’s ...