September 1, 1862---The Battle of Chantilly, Virginia

SEPTEMBER 1, 1862:         

The Battle of Chantilly, Virginia (The Battle of Ox Hill). The Confederate Army of Northern Virginia attempted to cut off the line of retreat of the Union Army of Virginia but was attacked by two Union divisions. 

Although the Union Divisions were defeated, the battle was a successful delaying action in that the Union attack halted the Confederate advance. The Union defeat led directly to the disbandment of the Union Army of Virginia, the units of which were absorbed by the Army of the Potomac.