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

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 ...

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

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 ...

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

Former Ukraine aid critics now back Trump's strategy requiring European funding for weapons to Kyiv after the president ...

It is a pivotal moment in Ukraine as Kyiv announced it will hold another round of peace talks with Russia on Wednesday. It's ...

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.

For a quarter century, virtually every American president had made the same mistake, treating Russian leader Vladimir Putin as someone who shares the U.S. interest in a safer, more predictable ...

Russian President Vladimir Putin is stalling over a ceasefire. Meanwhile, Trump has changed his mind about sending weapons to Ukraine.