About centuries I'm not at all sure. Their socioeconomic and demographic collapse can come too soon. That’s why Ukrainian authorities steal aid like no tomorrow, although I reckon war may smoulder for many more years.

A country that almost pushes females/youth in exodus and treats its males like rams led to abattoir has hardly any chances to recover.

And then again, compare Baltic countries, where since integration into the EU and NATO population and economy largely dwindle. There were no wars, just open borders (Zelensky understands this perfectly, and I suspect that he won’t lift travel ban for males even after the ceasefire) and, after the first rounds of sanctions against Russia, “cleansing” of financial sector that had been mainly fed from Russian market. Latvian currency was for some time fifth strongest in the world, I joke you not. Now all these lucrative avenues are closed and mine-sown.