US States Sovereignty

Doesn't the US do the same with states instead of countries?

Country means “sovereign state” - no-one’s suggesting EU member states aren’t sovereign nations in the sense US states aren’t.

US states are not countries.That was set with our Constitution, and thoroughly tested in the 1860s. The idea has never really been seriously tested again since.It’s a quite different setup from the EU.

American states are sovereign entities, not mere administrative districts that exist at the pleasure of the Feds.

Thanks for the clarification. From the outside (I'm from the Netherlands) it is easy to forget the US is made up of many states which still have at least some sort of independence.Same goes for Europe and its member states I guess.

How about non-nation states, such as the US?

Almost like the US is some sort of federation of states.

There is a huge diversity between US states in our federal structure, just like there is a huge diversity between EU member countries. For better or worse, US states are sovereign entities with the right to govern their own internal affairs. It would be more sensible to compare Mississippi to Romania. (Although Mississippi does still come out worse on certain metrics.)

State and Nation are not the same.

That’s a federation, like the USA or Switzerland. It doesn’t matter what type of government you have, it must protect its control over its laws, the federated system is a subset of those laws. So federated governments would take a similarly dim view if foreign entities tried to park and govern themselves in that federation’s border, the foreigners can’t just say, “hey you’ve got a new state in your border”.