[derb]

so it seems in general once your enemy's planet has been conquered it stays conquered with very little effort. Something I think should be included in future editions is the need for a garrison, at least for the first several years, in approximate proportion to the population.

There should be a %age chance depending on the difference between your politics and theirs and the strength of your garrison that the population will revolt (generate a new militia and fight you).

Conquering planets at the moment (at least when fighting the computer) is really too easy...