Hi there, assuming you mean the American Civil War, there are several threads in our FAQ about it, starting here:

http://www.reddit.com/r/AskHistorians/wiki/us_history#wiki_the_civil_war_and_slavery

If those don't work for you, you may want to repost the question in a day or two, and specify the American Civil War or a specific topic within the start of the war. A lot of our flared users have alerts set up on keywords, and this might have been missed because the question was vaguely worded :-)

Which Civil War are you interested in ?