Smallest viable US

What is the smallest viable United States?

I was thinking something like this:

Small US excerpt.png
 
Virginia needs to be part of any US that breaks off from Britain. Everything between Massachusetts and Virginia will be free.
 
In 1780 Va & MD will not be willing to give up slaves, perhaps will in the not too distant future but esp Va with the tobacco crop needs slaves...
 

frlmerrin

Banned
What do you mean by viable? A USA made up of Rhode Island or even just Cape Cod is still bigger than Monaco or Andorra and they both seem to work. You need to explain what you are looking for a little more.
 
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