Context. A U.S. intelligence report claims Russia has developed plans to invade Ukraine with 175,000 troops as soon as early next year. Ukraine officials estimate that more than 90,000 Russian troops have already amassed at the border, with U.S. intelligence putting the number at 70,000. During a meeting between President Biden and President Putin on December 7, 2021, Putin reportedly demanded guarantees that NATO would not expand eastward toward Russia's borders, guarantees Biden declined to provide. Biden stated that if Russia invades Ukraine, the United States and its allies would respond with "strong economic measures." Last month, Russian ambassadors to the United Nations stated that Russia “never planned, never did, and is never going to [invade Ukraine] unless we’re provoked by Ukraine, or by somebody else.”

Resolution details. For purposes of this question, an "invasion" requires at least 50,000 Russian troops, wearing Russian insignia and under the Russian banner, entering Ukraine territory. Ukraine territory includes both the separatist-controlled areas of Donbas and the rest of the country, but excludes Crimea. An unsuccessful or repelled invasion counts, provided more than 50,000 Russian troops enter Ukraine territory.

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This question was proposed by PabloAMC.

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Issued on 12/14/21 01:56pm
I modified the "resolution details" section. It now reads: For purposes of this question, an "invasion" requires at least 50,000 Russian troops, wearing Russian insignia and under the Russian banner, entering Ukraine territory. Ukraine territory includes both the separatist-controlled areas of Donbas and the rest of the country, but excludes Crimea. An unsuccessful or repelled invasion counts, provided more than 50,000 Russian troops enter Ukraine territory.