United States flag flew over a slave nation for over 85 years. The United States flag is linked to slavery a hell of lot more than any flag used by the Confederacy and it's military forces. Emancipation only affected the three million slaves in the Confederacy, the one million slaves in the Union were still slaves. It was a totally empty gesture. The North fought the war over money. Plain and simple. When the South started Secession, Lincoln was asked, "Why not let the South go in peace?" To which he replied, "I can't let them go. Who would pay for the government?" Sensing total financial ruin for the North, Lincoln waged war on the South. The South fought the War to repel Northern aggression and invasion. Quote from the Address to Virginia Compromise Delegation in March 1861.