"The study examined different scenarios, from a "best case", in which the war ended in 2023 without significant further escalation, to a "worst case", ending in

"The study examined different scenarios, from a "best case", in which the war ended in 2023 without significant further escalation, to a "worst case", ending in 2025 after further escalation." https://en.wikipedia.org/wiki/Demographics_of_Ukraine https://en.wikipedia.org/wiki/Demographics_of_Ukraine