In March 1919, there were some negotiations between the Soviet government and an American delegation led by William C. Bullitt for a peace offer between the different factions of the Russian Civil War. What this would have resulted in if it was achieved would be an effective partition of Russia between the Whites and Reds at the current borders. You can read more on it in Wikipedia and this old thread (please no necro). I attempted to make a Worlda of what this would have resulted in.
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This is the de facto situation on March 14, 1919.
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And here is what this would have resulted in. I have taken out Entente occupation zones, as one term was Entente withdrawal, and also removed pockets of Bolsheviks behind the main frontlines.
I doubt anyone would accept that, especially Latvia, Poland, Lithuania, Ukraine, neither the Whites.