From inside the book: The aggressive impulse meant the First Corps was in for a very tough day on July 1. In returns for June 30, the command had gained strength. There were 8,716 infantrymen and 687 officers present and equipped. The total of 9,403 reflected an increase of nearly 5 percent in ten days. Every man was about to be needed more than at any other point in the history of the corps. The men who had survived Sharpsburg the previous September likely never imagined the corps could lose more than twice as many men in one day. But such are the fates of war. Book jacket.