View of the Battlefield - July, 1861

The First Battle of Bull Run (or First Manassas), the earliest important engagement of the war, was fought on July 21, 1861, between a Union army of about 30,000 under the command of General Irvin McDowell, and a Confederate army of about 22,000 commanded by General Pierre Gustave Toutant Beauregard.

Both sides were ill-trained for war, but a Union order to blockade the South and public pressure in the North led to a march, accompanied by many spectators, toward the Confederate capital at Richmond. At Bull Run, the Union troops encountered the Confederate forces coming from their base at Manassas, about 4.8 km (about 3 mi) south of the stream.

The 5-hour battle began with a Union assault resulting in a Confederate retreat to Henry House Hill. There, a part of a brigade commanded by General Thomas J. "Stonewall" Jackson held back the Union troops until 9000 reinforcements under General Joseph Eggleston Johnston arrived. The Union general Robert Patterson had earlier failed to retain Johnston, and the combined Confederate force easily routed the Union army. The stubbornness of his defense earned for Jackson the nickname "Stonewall."

Although the flight of the Union army did not end until the troops reached Washington, the Confederate forces were too disorganized to pursue. The Union army lost about 2900 men killed, wounded, captured, or missing; the Confederates, about 2000. The Confederate victory encouraged the South and spurred the North to greater effort. General McDowell was relieved of command of the Union army and replaced by Maj. Gen. George B. McClellan, who set about reorganizing and training the troops.

The battle, demonstrating as it did the effectiveness of the Confederate army, changed the status of the conflict from a rebellion to a civil war.

  • Other Names: First Manassas
  • Location: Fairfax County and Prince William County, Virginia
  • Campaign: Manassas Campaign (July 1861)
  • Date(s): July 21, 1861
  • Principal Commanders: Brig. Gen. Irvin McDowell [US]; Brig. Gen. Joseph E. Johnston and Brig. Gen. P.G.T. Beauregard [CS]
  • Forces Engaged: 60,680 total (US 28,450; CS 32,230)
  • Estimated Casualties: 4,700 total (US 2,950; CS 1,750)
  • Result(s): Confederate victory

(See Bibliography below)

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Bibliography: Davis, William C., Battle at Bull Run (1977; repr. 1981); Foote, Shelby, The Civil War, 3 vols. (1958-74).

© Copyright "The American Civil War" - Ronald W. McGranahan - 2004. All Rights Reserved.