A war between NATO and Russia is at its closest point since the alliance was set up in 1949, experts have said.

Video from the Ukrainian military's first-person drones has captivated millions, but the footage offers only a narrow view of ...

BRUSSELS (AP) — NATO warned Russia on Tuesday that it would use all means to defend against any further breaches of its airspace after the downing this month of Russian drones over Poland and ...

For the first time, NATO allowed journalists to witness its annual nuclear exercise, a once-secret event that now serves as both a show of transparency and a message of deterrence toward Russia.

NATO has launched Operation Eastern Sentry with fresh troop deployments to Poland. This video explains what it means for the region.