I've seen all sorts of comments about this. My own personal belief was that slavery was a minor part of the reason for the southern states declaring the secession from the union. It was all about states rights and the growing interference of the feds in their activities. However, the following piece puts a very good light on the truth.:
Confederate President Jefferson Davis no more sought to take over Washington, D.C., than George Washington sought to take over London in 1776. Both wars, those of 1776 and 1861, were wars of independence. Such a recognition does not require one to sanction the horrors of slavery. We might ask, How much of the war was about slavery?
Read the entire thoughtful piece @ Historical Ignorance II CNS News