Crisis in the Southwest: The United States, Mexico, and the Struggle over Texas

Richard Bruce Winders provides a concise, accessible overview of the Mexican War and argues that the Mexican War led directly to the Civil War by creating a political and societal crisis that drove a wedge between the North and the South. While on the surface the enemy was Mexico, in reality Americans were at odds with one another over the future of the nation, as the issue of annexation threatened to upset the balance between free and slave states.