"'The people of the South', says a contemporary, 'are not fighting for slavery but for independence'. Let us look into this matter. It is an easy task, we think, to show up this new-fangled heresy, a heresy calculated to do us no good, for it cannot deceive foreign statesmen nor peoples, nor mislead any one here nor in Yankeeland... Our doctrine is this. WE ARE FIGHTING FOR INDEPENDENCE THAT OUR GREAT AND NECESSARY DOMESTIC INSTITUTION OF SLAVERY SHALL BE PRESERVED, and for the preservation of other institutions of which slavery is the ground work."
January 1, 1970
https://en.wikiquote.org/wiki/Slavery