In Defending Fort Stanwix, William L. Kidder tells the dramatic story of "the Fort that Never Surrendered" and the crucial role it played in the American War for Independence. After a series of military defeats over the winter of 1776-1777, British military leaders developed a bold plan to gain control of the Hudson River and divide New England from the rest of the colonies. Three armies would converge on Albany: one under Burgoyne moving south from Quebec, one under Howe moving north from New York City, and a third, under Barrimore St. Leger cutting east from Lake Ontario along the Mohawk River. Fort Stanwix lay directly on the path of St. Leger's force, making it a key defensive position for the Continental Army. By delaying St. Leger's troops and forcing a retreat, the garrison's stand at Fort Stanwix contributed to Burgoyne's surrender at the Battles of Saratoga a month later, a major turning point in the course of the war.

Kidder offers an engaging account of life in and around the fort in the months leading up to the siege, detailing the lives of soldiers and their families, civilians, and the Haudenosaunee peoples with a focus on both the mundane aspects of military life and the courageous actions that earned distinction. Defending Fort Stanwix relates the stories of local men and women, white and Indian, who helped with the fort's defense before, during, and after the siege and showcases an exciting, overlooked story of bravery and cooperation during the American Revolution on New York's frontier.