No doubt.... The Civil War.... No matter what you read was about states rights. And about the Federal Governments rights to interfere with states rights. Not slavery although that was an issue it was not "The Reason" for the war between the states..... The slavery issue was used to unify and justify the declaration of war on the South by Lincoln.
The South declared war by firing on Fort Sumter.
It reminds me of the Japanese and Pearl Harbor. Especially how the guys who shot first got beat.