North Atlantic Treaty Organization - NATO

Under the Defense Department's budget plan, funds for the European Defense Initiative would be cut to $4.5 billion.

The U.S. Army is reactivating its V Corps headquarters to beef up the service's command-and-control presence in Europe.

Defense Secretary Mark Esper wants to boost the number of foreign nationals training alongside U.S. troops by 50%.

NATO's commander declined to say whether the missiles had made it to Ukraine's front lines yet.

Lawmakers will not allow the F-35As once destined for Turkey to be transferred unless that country gets rid of its S-400s.

Ten thousand Marines, sailors and NATO troops will be pitted against each other in a force-on-force battle in the Mojave...

NATO Supreme Allied Commander Gen. Tod Wolters said Thursday he backed sending more Javelin tank-killer missiles to Ukraine.

Turkey was barred from the F-35 program after it decided to purchase the Russian S-400 missile.

Afghan ground controllers lack the ability to coordinate attack missions by the Afghan Air Force, according to the IG.