View source for First Battle of Bull Run

{{Infobox military conflict
|conflict    = First Battle of Bull Run<br>{{small|Battle of First Manassas}}
|partof      = the [[American Civil War]]
|image       = File:First Battle of Bull Run Kurz & Allison (cropped).jpg
|image_size= 300
|caption     = ''First Battle of Bull Run''.<br>[[Chromolithography|Chromolithograph]] by [[Kurz and Allison|Kurz & Allison]], 1889
|date        = {{Start date|1861|7|21}}
|place       = [[Fairfax County, Virginia|Fairfax County]] and [[Prince William County, Virginia|Prince William County]], [[Virginia in the American Civil War|Virginia]]
|coordinates = {{Coord|38.8147|N|77.5227|W|type:event_region:US-VA|format=dms|display=inline,title}}
|result      = [[Confederate States of America|Confederate]] victory
|combatant1  = {{flag|United States|1861}} ([[Union (American Civil War)|Union]])
|combatant2  = {{flag|Confederate States|1861}}
|commander1  = ''Political leaders'':
*[[Abraham Lincoln]]
''Military commanders'':
*[[Winfield Scott]]
*[[Irvin McDowell]]
*[[Robert Patterson]]
|commander2  = ''Political leaders'':
*[[Jefferson Davis]]
''Military commanders'':
*[[P. G. T. Beauregard]]
*[[Thomas "Stonewall" Jackson]]{{WIA}}
*[[Joseph E. Johnston]]
|units1= Department of Northeastern Virginia:
*[[Army of Northeastern Virginia]]
[[Department of Pennsylvania (American Civil War)|Department of Pennsylvania]]:
*''Patterson's Command'' (not engaged) 
|units2=
*[[Army of the Potomac (Confederate)|Army of the Potomac]]
*[[Confederate Army of the Shenandoah|Army of the Shenandoah]]
|strength1   = Army of Northeastern Virginia:
*35,732
''Patterson's Command'':
*14,000–18,000 (not engaged)
|strength2   = 32,000–34,000
|casualties1 ='''2,708'''<br />481 killed<br />1,011 wounded<br />1,216 missing
|casualties2 ='''1,982'''<br />387 killed<br />1,582 wounded<br />13 missing
}}

{{Campaignbox Manassas Campaign}} The '''First Battle of Bull Run''' was the first major engagement of the [[American Civil War]].