Secretary of State Antony Blinken said Wednesday that the U.S. had formally responded to Russia’s security demands in a letter he described as a “serious diplomatic path forward” to de-escalating threats against Ukraine.

Blinken said that there had been “no change” in the Biden administration’s position that NATO maintains its open-door policy for countries to join the alliance. The Kremlin had demanded that Ukraine be prohibited from joining NATO.

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