Please take some time to review the definition of the term "Civil War."

Here is one:

A civil war is a war in which parties within the same culture, society or nationality fight against each other for the control of political power. (Wikipedia 2007)

The so-called "American Civil War" was not a true civil war since the South was trying to leave the union, not take over the union.

Might I inquire, as it regards your crusade (and good luck with that, by the way), what the fuck it has to do with anything anyone was talking about?

Just asking.

I suspect he is a southerner and secretly considers himself a citizen of the Confederate States of America. He bristles at the use of the the term "US Civil War" because he considers it a war between two different nations. Plus, "there weren't nothing civil about the dang thing!"

In the 1860's, Americans fought a war for the "control of political power" in the states of the American South. Before the secession, those states were considered "within the same ... nationality" of their opponents.

Hence, there was a "civil war" in the English sense of the term.