Yeah but you didn't win. So a rebellion it was, and a rebellion it remains.
There is no "me" or "you" in regards to the Confederate States of America with me. My ancestors were fighting on both sides of the Cuban Wars of Independence or Wars of Cuban Rebellion in those days.
I was just calling you on your categorical statement regarding the term "Civil War":
"I've checked defines a civil war as " war between opposing groups of citizens of the same country." Which is an accurate defintion of what happened."
Since the term and the meaning of "citizen" is a creation of human law, any use of it is subjective when two sets of law conflict.
Was George Washington a British subject after July 4, 1776 but before the defeat of the British at Yorktown?
By your statement regarding "rebellion", you seem to agree that, whatever you call it, "Civil War" is not an accurate term.
As I noted, during the war itself, nobody referred to it as a "Civil War".
It was only in later years, that the more Politically Correct term "Civil War" came into common usage and even the title title of "Harpers' Weekly History of the Great Rebellion" was changed to "Harpers' Weekly History of the Civil War".
"[T]he moment this House undertakes to legislate upon this subject [of slavery], it dissolves the Union. Should it be my fortune to have a seat upon this floor, I will abandon it the instant the first decisive step is taken looking towards legislation of this subject. I will go home to preach, and if I can, practice, disunion, and civil war, if needs be. A revolution must ensue, and this republic sink in blood."
- South Carolina Congressman James Hammond, on the Floor of the House of Representatives.
The southerners knew what they were doing. It was rebellion. It was insurrection. It was civil war. And it was planned.