Shattered Union

In Shattered Union, you can try to reunify the United States after a tragic series of events leaves it shattered into a half-dozen nation-states. Shattered Union is a turn-based strategy game where you can assume control of any of the nation-states or a European peacekeeping force. You get to observe the repercussions of your actions as you watch them unfold in 3D, and these decisions affect how the plot unfolds. (gamefaqs)