How to use "association" in a sentence

Again, if the United States be not a government proper, but an association of States in the nature of contract merely, can it, as a contract, be peaceably unmade by less than all the parties who made it? One party to a contract may violate it - break it, so to speak; but does it not require all to lawfully rescind it?

I fail to see any association."

When I was young, I joined a secret political association in Italy called the Brotherhood