Given that "Catalunia leader" has dissolved the Parlament (Catalunia local congress) and declared independence(but saying that he suspended it), it is only logical what the Government has to do. The central Government is not escalating anything, on the contrary, it has been extremely weak. Imagine that some State in the US declares the president of the US has no decisions over his land, and that you follow your own l…
We have a strong Federalist Society and I think it would take much longer than 5 mins to act.
While the US Federal Government has gain alot of power after the last 100 years it is still not the Top Dogs, Under the US Constitution the State governments can amend and/or abolish the Federal Government if they so choose.
The US Constitution is entirely about limiting the power and scope of the US Federal Government, a fact that seems to be lost both in international understanding of the US, and sadly domestically as well since we have more and more people thinking the Constitution is about "Giving people rights" or outlining what an individual can do, instead of its original and true purpose of defining what the government is allowed to do
Prime example of this is National Speed Limits, there is no way for the US Federal Government to demand a speed limit so when they wanted to establish said limit of 65, they had to do it by bribes and extortion they tied federal funding for roads to the passage of state laws establishing a 65 speed limit, states that did not pass such a law would lose billions in federal money
So no I do not believe the reaction would be as you think it would be here in the States
A more modern and pressing example is the ongoing conflict between several states and the US Federal Government over Marijuana where multiple states have now openly defied the federal laws on prohibition of this plant.
And on Immigration where they openly resist and obstruct enforcement of Federal Immigration Law.
No in the US the State government are regularly in opposition to the Federal Government