Further military setbacks after their defeat near Warsaw made the Soviets eager to begin peace treaty negotiations, and the Poles, pressured by the League of Nations, were also willing to negotiate after the Polish army had annexed most of the disputed territories in the war but was nearing exhaustion.
Yderligere militære tilbageslag efter deres nederlag i nærheden af ​​Warszawa gjorde Sovjet ivrige efter at begynde fredsforhandlinger, og polakkerne, presset af Folkeforbundet, var også villige til at forhandle, efter den polske hær havde indtaget de fleste af de omstridte områder i krigen, men nærmede udmattelse.