America is leading a drill with 18 other nations in Europe's northeast.
Four countries bordering Russia reportedly called in Moscow's top diplomats on their territory as the EU decided its response to spy poisoning scandal.
The march of the Latvian Legionnaires brings together veterans of two divisions of the World War II-era German Waffen-SS.
The Russian jets didn't broadcast the proper codes to air traffic control.
With the establishment of a new Cyber Operations Center, NATO has launched a new, historic campaign of electronic warfare.
Russia’s increasing military activity and NATO’s mobilization of troops across Europe have put nonaligned Finland in a tough spot.
Lithuania’s defense minister said NATO states “need to address” permanent anti-aircraft power across the Baltic states and Poland to counter Russia.
Ukraine's President Poroshenko said Moscow showed no signs of backing off from his country and recent military activity shows the Kremlin is preparing for a much bigger conflict.
Last year, most Americans saw "friendly cooperation" as the way forward with Russia, but now they want Russia's power actively limited.
Russian helicopters blasted their targets not far from where the U.S. and NATO allies have just begun fortifying their air defenses.
The 4,500-strong deployment and wider strategy is "fully operational," NATO's secretary general announced.
The top U.S. Army commander in Europe complained that Russia is being too secretive about upcoming large-scale military drills.
The U.S. is finishing up naval exercises with NATO allies in the Baltic region, but Russia has an even bigger display of military might in the works.
The Baltics have been particularly worried about Russia’s annexation of Crimea in 2014.
Russia and Belarus's neighbors are concerned about the huge drill they have planned.
The navy has scheduled a series of tests for the cruise missile armed Krasnodar submarine.
U.S. tanks are part of a military buildup designed to deter Russian aggression in Eastern Europe.