There are "multiple options for Russia to test the cohesion of the alliance," the ex-head of NATO's Multinational Corps ...

John R. Deni is a research professor at the U.S. Army War College’s Strategic Studies Institute, a nonresident senior fellow ...

Former Russian President Dmitry Medvedev spoke as U.S. officials visited Paris where European leaders are holding talks on the Ukraine war.

Putting a European in place as the leader of Nato forces might seem like an easy option, but there are several major issues.

The bond that was the irreplaceable glue for the NATO alliance is not only being eroded, but it also is being removed.

Rop: At the Washington Summit, it was said that Ukraine's path to NATO is irreversible. But U.S. President Donald Trump says ...

Sweden's submarines are small and quiet, perfect for the Baltic Sea that many NATO allies share with Russia.

Experts warn that the timing of the potential drawdown could alarm NATO allies and embolden Russian President Vladimir Putin.

Once fully operational, both F-35 squadrons will replace older fourth-generation fighter jets, increasing the capabilities and lethality of NATO air forces in the region.

NATO Secretary General Mark Rutte visited the southern Ukrainian city of Odesa with President Volodymyr Zelenskiy on Tuesday ...

The U.S. military will pull its forces and equipment from a southeastern Polish logistics hub that is key in shipping weapons ...

Giving up American military leadership of the NATO alliance would be "problematic," Gen. Christopher Cavoli told senators ...