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

President Donald Trump has softened his stance on NATO. He once called the Western alliance "obsolete." Now, he says, it's ...

Vladimir Putin doesn't simply want Ukraine. He wants to assert dominance in the international system and undermine America's ...

The hypersonic missile and drone onslaught hit the western city of Ivano-Frankivsk, in the strongest attack of the 1,243-day ...

The U.K. chaired a Ukraine Defense Contact Group meeting to discuss rapid transfer of arms including Patriot missiles, as the ...

President Trump and NATO Secretary-General Mark Rutte have given Russian President Vladimir Putin something to help focus his mind. The July 14 announcement of a new NATO-backed weapons corridor into ...

A face-to-face meeting between the Ukrainian and Russian leaders is needed "to truly ensure a lasting peace," Zelensky said ...

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

Vladimir Putin’s conduct has prompted Donald Trump’s shift as Russia’s war effort in Ukraine has gotten only more aggressive.

MICHAEL KIMMAGE is Professor of History at the Catholic University of America. He is the author of Collisions: The Origins of the War in Ukraine and the New Global Instability.

During a presidential primary debate in 2016, Donald Trump fawned over Vladimir Putin. Trump stated, "We were both on 60 Minutes; we were stablemates." ...

EXCLUSIVE: The former head of the British Army has warned that NATO's resolve will be tested as he called on the government ...