Georgia is a small, mountainous country with around 4 million inhabitants that lies south of Russia bordering the Black Sea.
The annual event was reportedly almost three times the size it was last year.
NATO has around 32,000 troops in the Baltic region, compared with 78,000 Russians.
Russia said U.S. pilots should avoid traveling near Crimea—or expect Moscow's jets to fly close by.
Vladimir Putin has outlined the Arctic where Russia expects the U.S. and others to vie for "intimidating supremacy."
As a Turkey-backed offensive neared Manbij, Syria, the head of U.S. Central Command said withdrawal was "not something we are looking into."
The head of Russia's second biggest bank said the tightening of sanctions against the country's institutions would be "like declaring war."
General Sir Nick Carter warned the British government about further cuts to its armed forces.
Russia's manoeuvres in Ukraine have sparked concern in one of the few European countries not to join a U.S.-led military alliance.
A Navy spokesman told Newsweek the U.S. had successfully held the fort down, but its Romanian allies may be struggling against the livestock invasion.
Moscow has revamped virtually every aspect of its forces over the last decade and U.S. allies must modernize, Joe Dunford said.
There are no signs for optimism in U.S.-Russia ties, warned the head of Moscow's International Affairs Committee.
The Russian jets didn't broadcast the proper codes to air traffic control.
Turkey's relationship with the U.S. has been strained for months.
The S-400 deal, reportedly worth about $2.5 billion, has caused concern in the West because Turkey is a member of NATO.
The Kremlin has expressed concern over the missile shield the U.S. provides in Eastern Europe, near Russia's western border.
The alliance is concerned about Moscow's presence near undersea communication lines.
The EU cannot afford to become indifferent to threats to the rule of law among its members.
Undersea lines across the Atlantic are crucial for communication and trillion-dollar trade, but Russian ships have reportedly been moving near known cable routes.
With the establishment of a new Cyber Operations Center, NATO has launched a new, historic campaign of electronic warfare.
Beijing's man in Moscow said the key to Russia and China's relationship was their mutual abandonment of Cold War logic.
Western observers consider Russia's role in Egypt, Libya and Syria as a challenge to NATO, which tried to overthrow leaders in all three Mediterranean states.
Russia's increasing military activity and NATO's mobilization of troops across Europe have put nonaligned Finland in a tough spot.