I came up with an idea of a mod. I wonder if it’s possible. What if you can steal all of the pops of a recently taken city instead of occupying it? An additional option on the captured city dialogue can be made. It can be called “capture the population”. After pressing it, population of captured city being distributed between your cities. And in the end you can leave it with one pop or raze it. Is it possible at all? And, is it possible for AI to use it sometimes? The goal of such thing is - you will be able to play aggressive-tall civ, not just capturing everything. And wars can become an instrument to develop your capital.