It depends on your ideology, but generally you get much more initial factory output and manpower from non-core territories if you puppet them. For example, I don't see why I would want to keep Korea occupied playing as Japan when I can release it as a max-level puppet and get 25% CIV, 65% MIL, and all of its manpower right from day 1. And even the remaining IC isn't technically lost since whatever your puppet produces with them are essentially yours. So aside from a few states with abundant resources, why would I ever want to occupy territories myself?
- 2
- 1