[41][f] What took place, known as the Battle of Jumonville Glen or the "Jumonville affair", was disputed, and French forces were killed outright with muskets and hatchets. French commander Joseph Coulon de Jumonville, who carried a diplomatic message for the British to evacuate, was killed. French forces found Jumonville and some of his men dead and scalped and assumed Washington was responsible. Washington blamed his translator for not communicating the French intentions.[43] Dinwiddie congratulated Washington for his victory over the French.[44] This incident ignited the French and Indian War, which later became part of the larger Seven Years' War.[45]
The full Virginia Regiment joined Washington at Fort Necessity the following month with news that he had been promoted to command of the regiment and colonel upon the regimental commander's death. The regiment was reinforced by an independent company of a hundred South Carolinians led by Captain James Mackay, whose royal commission outranked that of Washington, and a conflict of command ensued. On July 3, a French force attacked with 900 men, and the ensuing battle ended in Washington's surrender.