Russia accused two British diplomats of spying on Monday and gave them two weeks to leave the country, maintaining the ...

Iran has been a daily zig zag of messages, one day trumpeting negotiations with the West as possible, the next day saying its ...

Congressionally Chartered. Scholarship Driven. Fiercely Nonpartisan.

"We're really on a knife-edge here," said Calder Walton, a historian specializing in intelligence at Harvard University's ...

The United States’ failure to field a credible, theater nuclear-deterrence capability is destabilizing and puts the United States at a disadvantage with its adversaries in Beijing, Moscow, and ...

Poland and Baltic nations welcomed Thursday a proposal by French President Emmanuel Macron to launch talks about using France’s nuclear deterrent to protect the continent from ...

Washington is winding down its European security contributions and backing away from Ukraine. Europeans could learn from ...

In seeking an accord with U.S., Beijing wants to avoid becoming isolated like the Soviet Union during the Cold War.

NATO's early 1990s push to involve itself in humanitarian interventionism gave Vladimir Putin the excuse he wanted to attack Ukraine.

Threats of territorial conquest are once again becoming a central part of geopolitics, driven by a new phase of great-power ...

Old and young, healthy and sick, men and women, and even infants and infirm, were killed in cold blood. They were not ...

Europe is scrambling to react effectively the relentlessness, and pace, of change in Washington, writes Europe editor Katya Adler.