The many works on the Battle of Gettysburg have neglected the role of the 2nd U.S. Sharpshooters, known for their extensive training and specialized tactics. This history is the first to explore the actions on July 2, 1863, of this Union Army regiment largely composed of men from Maine, Michigan, Minnesota, New Hampshire, Pennsylvania, and Vermont.

Drawing on newly discovered primary sources, this book seeks to clarify mysteries such as the identity of the non-commissioned officer who met with Company B of the 20th Maine and the location of Major Homer R. Stoughton during the battle. Following the understrength regiment as it confronts two Confederate brigades, this thorough historical narrative presents a long untold story of the Battle of Gettysburg.