The Maryland Campaign represented Gen. Robert E. Lee's first invasion of the North. Opposing Lee was Gen. George B. McClellan, who had just retreated from Lee's onslaught during the Seven Days Battles. While Lee and McClellan fought a preliminary battle at South Mountain, and a final engagement with Lee's rearguard at Shepherdstown as the Confederate Army withdrew across the Potomac, the full force of both armies would meet at Antietam, and the subsequent battle would prove to be the bloodiest single-day battle of the war.

Decisions of the Maryland Campaign introduces readers to critical decisions made by Confederate and Union commanders throughout the campaign. Michael S. Lang examines the decisions that prefigured the action and shaped the contest as it unfolded. Rather than a linear history of the campaign, Lang's discussion of the critical decisions presents readers with a vivid blueprint of the campaign's developments. Exploring the critical decisions in this way allows the reader to progress from a sense of what happened in this campaign to why they happened as they did.

Complete with maps and a guided tour, Decisions of the Maryland Campaign is an indispensable primer, and readers looking for a concise introduction to the campaign can tour this sacred ground-or read about it at their leisure-with key insights into the campaign and a deeper understanding of the Civil War itself.

Decisions of the Maryland Campaign is Lang's second contribution and the thirteenth in a series of books that will explore the critical decisions of major campaigns and battles of the Civil War.