The measure is eating into Kremlin fossil fuel export profits and exacerbating a ballooning budget deficit amid Russia's war in Ukraine.
British and German jets intercepted a Russian refueling aircraft that did not respond to Estonian air traffic control.
The operation over Estonia, which shares its eastern border with Russia, comes as tensions between NATO and Moscow remain high amid the Ukraine war.
A NATO minnow on the front line with Russia is urging allies to adopt an uncompromising strategy to strategically defeat Moscow.
The president of the Baltic Security Foundation told Newsweek the systems are a "game changer" for the nations.
Russia's invasion of Ukraine has spurred nearby countries to reconsider their military capabilities, with many now seeking long-range missiles.
One Baltic diplomatic official said Russia is "trolling" NATO states as it seeks new leverage in Ukraine.
Mircea Geoană did not provide any details of a planned deployment, but said there would be "a robust, flexible and sustainable presence" in eastern Europe.
Putin and other Russian officials have repeatedly warned Russia could use nuclear weapons against NATO nations if they intervene in the Ukraine invasion.
A Sixth Fleet spokesperson told Newsweek that the U.S. Navy works "to ensure security and stability in the Baltics, and that work continues unabated by the current situation."
He warned on Sunday that the Russian president could invade non-NATO member nations including Moldova and Kazakhstan.
The foreign ministers of NATO allies Estonia and Latvia were in Ukraine's capital when the attack began, with the Lithuanian minister preparing to join them.
Allies in Eastern Europe worried the U.S. wasn't taking the Russian threat seriously enough. Then Biden held his disastrous press conference.
Latvian, Lithuanian and Estonian officials told Newsweek of their concern over Russia massing its troops and its planned military exercises Belarus.
The Russian government spokeswoman was reacting to comments made by NATO allies to Newsweek.
Top diplomats from NATO's Baltic states said the former president's public belligerence belied the alliance's response to Russian aggression.
"Nobody knows where it is, but when you find it, it's amazing," reads Vilnius's new tourism ad.
The newly arrived Yandex Taxi app is a product of one of Russia's most successful and popular digital companies—and Lithuanian officials are suspicious.
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.
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.
The 1.6 million who have been displaced are being badly treated by Ukraine.