A full-scale invasion of Poland, in the manner Russia invaded Ukraine, is rather not viable, given Russia's current military ...

A drone was detected around five miles into Romanian airspace in the early hours of Wednesday morning, the country's defense ...

A spokesperson for Poland's special services minister accused Russian intelligence Tuesday of orchestrating a railway blast ...

EXCLUSIVE: The former head of Poland's Foreign Intelligence Service said that Vladimir Putin could kill and injure hundreds ...

NATO scrambled fighter jets in Polish and Romanian airspace overnight as Russia carried out massive drone and missile strikes ...

NATO was forced to scramble fighter jets after the Russian forces launched one of the biggest drone and missile attacks on ...

Some of America's closest European allies say they're already in a gray zone between peace and war with Russia.

Military capability of Western alliance remains 'formidable' despite questions around US commitment to untested 'mutual ...

Poland has scrambled fighter jets just hours after a top general warned Russia is preparing for war against NATO. The Eastern ...

Poland and Romania scrambled fighter jets overnight after Russia launched a wave of missile and drone attacks on western ...

Professor Michael Clarke has been answering your Ukraine war questions live - scroll down for the best of his answers, or use the video below to watch back this week's Q&A.

The European Union has introduced a new defense package to speed up the deployment of tanks and troops across its 27 nations ...