Battle of Thoroughfare Gap

Battle of Thoroughfare Gap
Part of the American Civil War
Date August 28, 1862 (1862-08-28) Location Fauquier County and Prince William County, Virginia 38°50′N 77°43′W / 38.83°N 77.72°W / 38.83; -77.72 Result Confederate victory
Belligerents
United States (Union)	CSA (Confederacy)
Commanders and leaders
James B. Ricketts	James Longstreet
Units involved
Union Army of Virginia	Confederate Army of Northern Virginia
Strength
5,000	28,000
Casualties and losses
100[1]
class=notpageimage| Location of the battle in Virginia

The Battle of Thoroughfare Gap, also known as Chapman's Mill, took place on August 28, 1862, in Fauquier County and Prince William County, Virginia, as part of the Northern Virginia Campaign of the American Civil War.^[2] Confederate forces under Maj. Gen. James Longstreet successfully drove back Union forces under Brig. Gen. James B. Ricketts and Col. Percy Wyndham, allowing his corps to unite with that of Thomas J. "Stonewall" Jackson prior to the Second Battle of Bull Run (Second Manassas).