The AI is so stupid, you make an alliance and then within the first minute they declare war on you and all other nations also nuke you. When you don't make allances they ignore each other and instead nuke you constantly. You then get stuck because you are constantly making defence missiles, and they are expanding and they all get so big that when they all nuke you, it's just game over, keep in mind this is every difficulty. The game could be fun, and that's the reason for 2 star.