Some of America's closest European allies say they're already in a gray zone between peace and war with Russia.

Military capability of Western alliance remains 'formidable' despite questions around US commitment to untested 'mutual ...

AFAFRICA’s transition to a three-star command could herald a shift of more leadership responsibility to European generals.

NATO and U.S. allies try to assuage fears over bolstering Russia as the Pentagon announces a U.S. troop reduction in eastern ...

Opinion: Nobody knows exactly what counts toward a 1.5% target, and the first progress check slated in the summit declaration ...

Azerbaijan’s growing NATO ties and Western partnerships are reshaping the balance of power in the South Caucasus.

Peaceful European NATO nations that support Ukraine are repeatedly being targeted by mysterious drone incursions, and experts ...

Former NATO Secretary General Jens Stoltenberg says the way to change Russian President Vladimir Putin mind and bring him to the negotiating table to end the war in Ukraine is to step up military aid ...

The decision was expected given changes in Washington's priorities, but roughly 1,000 U.S. troops will continue to be stationed in Romania, the country's defense ministry said.

Russia will bank on a split in NATO over whether to invoke the alliance's collective defensive pledge, spurring it to stage a limited incursion into the alliance’s eastern flank within three years, ...