Meet Col. Ty Seidule, head of the department of history at West Point in upstate New York.

Allow him to explain what the American Civil War was about, and end the whole debate that it was over anything but slavery. Seriously though — who better to provide the definitive answer? Not only is he a professor who’s dedicated his life to pursuit of learning and educating others, he’s a military man. A colonel.

The man has some serious credentials. Should probably listen to him.

Try it: