Hmm …

… RTs Reviews and Marginalia : A Disease in the Public Mind: A New Understanding of Why We Fought the Civil War.

I have myself long thought that naval blockade of the South would have been the best response to the attack on Fort Sumter. The South had no manufacturing to speak of and was dependent on exports of cotton and tobacco. They also had no navy. It would taken time, of course, but the bloodshed would have been far less.