On July 9, 1755, British regulars and American colonial troops under the command of General Edward Braddock, commander in chief of the British Army in North America, were attacked by French and Native American forces shortly after crossing the Monongahela River and while making their way to besiege Fort Duquesne in the Ohio Valley, a few miles from what is now Pittsburgh. The long line of red-coated troops struggled to maintain cohesion and discipline as Indian warriors quickly outflanked them and used the dense cover of the woods to masterful and lethal effect. Within hours, a powerful British army was routed, its commander mortally wounded, and two-thirds of its forces casualties in one the worst disasters in military history.

David Preston is the Westvaco Professor of National Security Studies at the Citadel. He is the author of The Texture of Contact: European and Indian Settler Communities on the Frontiers of Iroquoia, 1667-1783.