hey, nice job on the fighting system, very similar to board games like 'risk', i truly enjoyed playing it. In terms of feedbacks and things to improve i'd guess there is two major ones :
first of all, the discontent system is, in my opinion, useless to the player, i'd rather invade someone else to keep them from getting stronger all the while, i'm expanding my territory, and so my manpower. It's interesting to get those events where there's a rebellion happening, but i'd rather make it fully random, or at least give a better control to the player over it, cause i'm enclined to just ignore that part and try to rush the conquest.
following up, i think you lack something reaaaally important for those kind of games, and that is territory characteristic. Controlling a small area deep inside enemy territory must feel like you're surrounded, weak, and vice versa. it would be interesting to focus more on the combat system, as i found it very satisfying, and a bit strategic, which is already a great achievement for such a small time of work.
Nice job, maybe a bit ambitious for a jam, but keep going, and be proud of what you achieved, and that is a pretty fun strategy game, which is one of the most complicated things to create in my opinion :)