During Operation Allied Force in 1999, NATO F-16 fighter jets engaged Yugoslav MiG-29 fighters in one of the final and most intense air battles of the conflict over the Balkans. Flying at high speed ...

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 will hold its major annual nuclear exercise next week, the alliance’s chief announced, with an important part of the drill to focus on protecting the weapons before they're ever used. BRUSSELS — ...

The operation, Steadfast Dart, comes as President Trump has been accused of undermining the alliance and will be watched closely to see how well the allies manage without their most important partner.

NAPLES, Italy — NATO allies are strengthening their anti-submarine capabilities this week in the Baltic Sea, a region whose infrastructure network makes it susceptible to Russian mischief threatening ...