“They do not know what they say. If it came to a conflict of arms, the war will last at least four years. Northern politicians will not appreciate the determination and pluck of the South, and Southern politicians do not appreciate the numbers, resources, and patient perseverance of the North. Both sides forget that we are all Americans. I foresee that our country will pass through a terrible ordeal, a necessary expiation, perhaps, for our national sins.” - General Robert E. Lee.
There was a lot of wisdom in that man.