The Battle of Jumonville Glen, also known as the Jumonville affair, was the opening battle of the French and Indian War fought on May 28, 1754 near what is present-day Uniontown in Fayette County, Pennsylvania. A company of colonial militia from Virginia under the command of Lieutenant Colonel George Washington, and a small number of Mingo warriors led by Tanacharison (also known as "Half King"), ambushed a force of 35 Canadiens under the command of Joseph Coulon de Villiers de Jumonville.