Politics

So my suggestion really isn't that too complex, depending on a doctrine, a country has an ideology, either: Democracy, Fascism, Communism, and monarchy/Non-aligned. Ideologies would affect morale a lot, for example, Fascism has a higher chance of rebellion/ lower morale, but they are more likely to catch spies. Your Ideology could change if your capital's morale drops to 20 or 15% if this happens, there will be a popup simular to the nuke one, and it will inform you what has happened, you will still remain in control of your nation, but things like resource production may be lowered for some time