European officials knew the president’s win would threaten the fundamental precepts of the post-World War II order. But the ...

BRUSSELS — In just one speech by U.S. Defense Secretary Pete Hegseth this week, the most powerful member of NATO has thrown ...

The mutual-defense alliance has been central to Ukraine’s war against Russia, but the future is uncertain with President ...

NATO’s ranks have grown since the Washington Treaty was signed 75 years ago — to 32 countries after Sweden joined last year, worried by an increasingly aggressive Russia. NATO’s collective ...