NATO's eastern flank has grown increasingly nervous that Moscow's forces could quickly rebuild after a ceasefire in Ukraine.

“Putin’s Endgame: The Stakes Beyond Ukraine,” a new documentary from The Atlantic Council’s Eurasia Center, seeks to answer ...

The top U.S. general is making his debut this week at NATO headquarters in Brussels, where defense chiefs are preparing for a ...

Opinion: The path to a transformed Alliance would begin with the adoption at the summit of transition plan, propose analysts.

Swedish public media report that the Russians are expanding their military bases and installations near the NATO border. The ...

New satellite images suggest that Russian forces are amassing near the border with Finland, fueling concerns that a conflict with NATO may be approaching.

BRUSSELS — The Trump administration wants to hear this week how NATO’s European member countries and Canada plan to boost ...