I don't think we should have commerce with the white area…look at how imperialism effected Africa. Resources were the name of the game, and to this day we are waging war with people to protect economic interests. If you think this is going to change and they will be peaceful…
I think we should have an armed militia. When this initial split happens, do we gain control of the military institutions that are already there? I'm talking armories, bases and whatever other stuff they have now? Are we keeping this infrastructure, or is this occurring in some type of post apocalyptic environment where we have to start from scratch.
I don't think the federal government should exist at all. I think we should have a standard way of doing things (currency, tax, education, etc.), but local governments should have the majority of the power.