NATO is set to conduct its major annual nuclear exercise next week, with a primary focus on protecting its weapons before deployment, the alliance’s chief announced on Friday.

The obvious question is why Russian drones and aircraft have suddenly begun flying into NATO airspace. The Kremlin has been coy, simply announcing that it was not intending to attack targets in Poland ...

BRUSSELS — NATO is stepping up aerial surveillance in the Baltic Sea, while France, Germany and Sweden are bolstering Denmark’s air defenses ahead of two summits in Copenhagen this week over a series ...

U.N. Ambassador Mike Waltz spoke during an emergency session of the council on Russia's recent incursion into Estonian airspace.

President Donald Trump said Tuesday that Ukraine could restore its borders from before Russia’s invasion and that he believes NATO member countries should shoot down Russian aircraft if they enter ...