Avoid forming political parts
The Confederacy? The interest seems to be the act of slavery and the war Lincoln is talking about must be the Civil War, which was taking place while Lincoln was addressing his second inaugural. Lincoln was reasoning that the Confederacy was fighting to keep slavery, which is the interest the "insurgents" have. Lincoln also did not want slavery to continue to spread, but he was fine with having slavery, "restrict the territorial enlargement if [slavery]".
The american civil war beacause you cant just search only that up. You will get lots of answers beacuse more than one thing happened then.
I think it’s a person’s citizenship status but i might be wrong
