"The United States also condemns Russia’s decision to grant expedited Russian citizenship to Ukrainians living in the Russia-controlled Donbas. Through this highly provocative action, Russia is clearly intensifying its assault on Ukraine’s sovereignty and territorial integrity. Mr. President, Donbas is Ukraine, and the people there are Ukrainian—regardless of which language they prefer to speak. Conferring citizenship en masse to the citizens of another state undermines and violates the principle of sovereignty. Russia’s actions subvert the principles on which the Minsk agreements are based: that the Donbas is an integral part of Ukraine and the Ukrainian government must reestablish its control over this territory."
Minsk agreements

January 1, 1970