This work studies the evolution, organizational structure, and employment of the maneuver brigade. In passing, it discusses other army brigades, such as those consisting of field artillery, aviation, and engineer units. This special study illuminates the history and evolution of the brigade as an organization in the US Army, from the earliest days to the current era. It follows both organizational structure and how it was actually employed on the battlefield. It provides an organizational history of the maneuver brigade and case studies of its employment throughout the various wars. Apart from the text, the appendices at the end of the work provide a ready reference to all brigade organizations used in the Army since 1917 and the history of the brigade colors.