Quote Originally Posted by Rjk View Post
I guess Texas was independent for a short while.

and you could say that the holy Roman empire collapsed into many small states, which eventually some of remerged into Germany but it's not a very good example.
Texas is a nice shout, although I think it left Mexico and eventually joined the US. Really though, it's not easy to find examples of nations that regret independence, even if it's very difficult and daunting.

Anguilla may be one example, as it fought to become an overseas territory of Britain after independence. Would need to read more about it though, as it seems that independence was forced upon them and not sought.