Hegseth shuts the Office of Net Assessment for no good reason.

It’s a new day in Europe. Gone are the halcyon years of unshakeable American commitment to Europe’s defense against Russia.

The “city under the ice” revealed a hidden chapter of the Cold War era and gave rise to a new field of scientific inquiry. As ice melt accelerates, its story isn’t over yet.

Talk of replacing the American nuclear umbrella over Europe with the small British and French nuclear armories is in the air, ...

The collapse of the Soviet Union greatly reduced the West’s fear of another world war—a fear that had led Western leaders to tolerate Soviet spheres of influence in central and eastern Europe. Many ...

There are good reasons to anticipate evolutionary, rather than revolutionary, change to NATO and European defense.

No matter what else Trump and others propose, there is no skirting the dilemma: Earnest cease-fire talks cannot begin without the prospect of credible security guarantees; no guarantee can be credible ...

In recent days, the perceived value among allies of acquiring nuclear weapons is up, and confidence in the U.S. nuclear ...

It is no coincidence that Prime Minister Donald Tusk of Poland openly raised the possibility that his country may need to arm ...

Political scientist John Mearsheimer is convinced that the U.S. government under Trump wants to leave Europe to concentrate ...

The Future Soldier warfighting structure stands as an impediment to the British Army attaining mass, with reservist unit ...

At the heart of NATO, the world’s longest-standing security alliance, is the notion that an attack on one is an attack on all ...