---

Battles of Manassas • Tour the Battlefield • Monuments • The Armies

---

First Battle of Bull Run (Manassas)

July 21, 1861

The First Battle of Bull Run (if you were from the North) or Manassas (if from the South) was the first major battle of the Civil War, but was relatively small. The Confederacy brought a little over 32,000 men to the field, while the Union brought a little over 28,000.

Organization of the Confederate Armies at First Bull Run (Manassas)  

Organization of the Union Army at First Bull Run (Manassas)

Second Battle of Bull Run (Second Manassas)

August 28-30, 1862

Thirteen months later the second battle involved over twice as many men, with 70,000 Northerners facing 55,000 Southerners. Both armies had different commanding generals, but many of the participants from 1861 returned a year later.

Organization of the Confederate Army of Northern Virginia at Second Bull Run (Manassas)

Organization of the Union Army of the Potomac at Second Bull Run (Manassas)