The bloody and decisive two-day battle of Shiloh (April 6-7, 1862) changed the entire course of the American Civil War. The stunning Northern victory thrust Union commander Ulysses S. Grant into the national spotlight, claimed the life of Confederate commander Albert S. Johnston, and forever buried the notion that the Civil War would be a short conflict. The conflagration at Shiloh had its roots in the strong Union advance during the winter...