'kay, 'kay, i know the game is called eRepublik, but we could have different political systems. for every party there could be a "coup country" button, with a, let's say, 20% chance of success. the new ruling party could then choose the new form of government: absolute monarchy, constitutional monarchy, parliamentarism or military dictatorship( in this case, the guy with the highest rank and exp is the automatical ruler of the country).