Battle of Chantilly

Battle of Chantilly
(Battle of Ox Hill)

General Kearny's gallant charge

Date	September 1, 1862 (1862-09-01)
Location	Fairfax County, Virginia
Result	Inconclusive

Belligerents

United States (Union)

CSA (Confederacy)

Commanders and leaders

Philip Kearny †
Isaac Stevens †

Stonewall Jackson
J.E.B. Stuart

Units involved

Army of Virginia:

III Corps;
IX Corps

Army of Northern Virginia:

Second Corps

Strength

6,000

20,000

Casualties and losses

1,300

800

Army of Virginia:

Army of Northern Virginia:

The Battle of Chantilly (or Ox Hill, the Confederate name) took place on September 1, 1862, in Fairfax County, Virginia, as the concluding battle of the Northern Virginia Campaign of the American Civil War. Thomas J. "Stonewall" Jackson's corps of the Army of Northern Virginia attempted to cut off the line of retreat of the Union Army of Virginia following the Second Battle of Bull Run but was attacked by two Union divisions. During the ensuing battle, Union division commanders Isaac Stevens and Philip Kearny were both killed but the Union attack halted Jackson's advance.

Defeated in the Second Battle of Bull Run on August 30, Union Maj. Gen. John Pope ordered his Army of Virginia to retreat to Centreville. The movement began after dark, with Maj. Gen. Irvin McDowell's III Corps providing cover. The army crossed Bull Run and the last troops across, Maj. Gen. Franz Sigel's I Corps, destroyed Stone Bridge behind them. Gen. Robert E. Lee decided not to press the advantage gained that day, largely because he knew his Army of Northern Virginia was exhausted from two weeks of nearly constant marching and nearly three days of battle, so the Union retreat went unmolested. Lee's decision also allowed the Army of Virginia's II Corps, under Maj. Gen. Nathaniel P. Banks, to consolidate with the bulk of Pope's army, marching in from Bristoe Station, where they had been guarding the army's trains. More importantly, Lee's decision bought time for the Union to push to the front the Army of the Potomac's II, V, and VI Corps, which had been brought from the Peninsula and—much to Maj. Gen. George B. McClellan's dismay—placed under Pope's command.

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Wikipedia