First Battle of Bull Run

First Battle of Bull Run; Battle of First Manassas
	Part of the American Civil War
	; First Battle of Bull Run.; Chromolithograph by Kurz & Allison, 1889
Date	July 21, 1861
Location	Fairfax County and Prince William County, VirginiaLua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value).
Result	Confederate victory
Belligerents
United States (Union)	Confederate States
Commanders and leaders
Political leaders: Abraham Lincoln; Military commanders: Winfield Scott; Irvin McDowell; Robert Patterson;	Political leaders: Jefferson Davis; Military commanders: P. G. T. Beauregard; Thomas "Stonewall" Jackson (WIA); Joseph E. Johnston;
Units involved
Department of Northeastern Virginia: Army of Northeastern Virginia; Department of Pennsylvania: Patterson's Command (not engaged);	Army of the Potomac; Army of the Shenandoah;
Strength
Army of Northeastern Virginia: 35,732; Patterson's Command: 14,000–18,000 (not engaged);	32,000–34,000
Casualties and losses
2,708; 481 killed; 1,011 wounded; 1,216 missing	1,982; 387 killed; 1,582 wounded; 13 missing

The First Battle of Bull Run was the first major engagement of the American Civil War.