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

The move is being discussed as part of a possible restructuring of combatant commands that would help the Defense Department ...

The NATO allies pulling out of a treaty banning the use of landmines said it sends the message they'll use whatever they need ...

European leaders are increasingly worried about their security and European Army is gaining momentum, after recent speeches ...

For decades, Europe's security architecture has heavily relied on the US-led NATO framework. Amid the current instability, Europe's contemplation of its own long-term security has deepened further.

Of course, information troops should become the basis of security for NATO and European countries in principle. A lot depends ...

Russia is seeking an "ironclad" guarantee that Ukraine is barred from NATO and foreign troops stay out, a deputy foreign ...

Some rearmament is desirable. But figuring out how much to spend—and what to make—is critical to avoid mistakes, writes ...

European Commission President Ursula von der Leyen announced on Tuesday a new joint task force with Ukraine is to be ...

Russian deputy foreign minister Alexander Grushko said Monday that any peace deal with Ukraine must include "security ...

With all eyes on a possible ceasefire in the war in Ukraine, NBC News’ Richard Engel speaks with Ukrainian soldiers.

His secretary of defense, Pete Hegseth, has avowed, “The United States remains committed to the NATO alliance and to the defense partnership with Europe. Full stop.” At this point, the better ...