The civil war was not required to remove slavery, it could easily have been removed via the law; which it was. The war was the unfortunate result of the lawful

The civil war was not required to remove slavery, it could easily have been removed via the law; which it was. The war was the unfortunate result of the lawful attempts to remove slavery from the country. If the war had not happened, the Southern states would have left the country to form their own with slavery and the remaining US states would have continued making slavery illegal. The war was partly to keep the Union together. But it's a complicated thing that doesn't have just one simplified element to it.