San Antonio College Library

In Trading with the Enemy: The Covert Economy During the American Civil War, New York Times Disunion contributor Philip Leigh recounts the little-known story of clandestine commerce between the North and South. Cotton was so important to the Northern economy that Yankees began growing it on the captured Sea Islands of South Carolina. Soon the neutral port of Matamoras, Mexico, became a major trading center, where nearly all the munitions shipped to...