Union loses Gettysburg?

If the Union had lost the Battle of Gettysburg, the whole course of the Civil War would have changed. Robert E. Lee and his army would be able to capture large areas of Northern land, as there would be no armies to oppose him. Southern morale would be skyrocketing as they accomplished the goal of winning a battle on Northern land. Britain and France still probably wouldn't have helped the South because they were honorable countries, and they wouldn't go join the cause of fighting to keep slavery. However, the South would still have a good chance of winning. Robert E. Lee would have gained confidence and gone even more on the attack. Even better for the South would be that President Lincoln, who didn't want many more men to die, would try to make peace. After all, the goal of the Confederacy was to be a separate nation, not to conquer the North. The Battle of Gettysburg would have changed the Civil War if the South had won.