A renewed buildup of Russian troops near the Ukrainian border has raised concern among some officials in the United States and Europe who are tracking what they consider irregular movements of equipment and personnel on Russia’s western flank.

The officials, who spoke on the condition of anonymity because they weren’t authorized to discuss the matter publicly, said the troop movements have reignited concerns that arose in April when the largest buildup of troops by Russia near the Ukrainian border in years sparked an international outcry.

The renewed movements of Russian forces in the area come as the Kremlin embraces a harder line on Ukraine. Russian officials from President Vladimir Putin on down have escalated their rhetoric in recent months, attacking Kyiv’s Western ties and even questioning its sovereignty.


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Putin has warned that any expansion of NATO military infrastructure on Ukrainian territory represents a “red line” for Moscow. The situation also comes as the simmering 7½-year conflict between Ukrainian forces and Russian-backed separatists in the eastern Donbas region enters a new stage.

On Oct. 26, Ukraine’s military confirmed it had used a Turkish-made drone against a position in Donbas, the first time Kyiv has employed the technology in combat, prompting an outcry from Moscow.

Relations between Moscow and NATO are especially tense. Russia suspended its mission to NATO in Brussels on Oct. 18 after the alliance expelled eight members of the Russian mission on accusations of espionage. What the Russian forces gathering near the Ukrainian border are doing is unclear. READ MORE