Jackson's Corps numbered about 15,000 troops and Stuart's cavalry, who was under Jackson's operational control, added an additional 5,000. Altogether, this gave Lee about 20,000 troops to use for his flanking movement. The order of battle below does not include Longstreet's Right Wing since he arrived too late to be a factor in the battle. Longstreet's only loss was an ordnance officer, who was captured when he wandered into enemy lines.

Civil War regiments on both sides could contain as many as 800 - 1000 men, however most combat regiments would average about 400. To make it easier to understand how the battle developed, Confederate units are shown on the maps by brigade. Each brigade would normally have 4 to 7 regiments of infantry with division artillery in support.

To further clarify the names of the armies... Pope's Union army was named "Army of Virginia" since it's operations were based in that Confederate state, not because it represented Virginia. Lee's army was named "Army of Northern Virginia" because it's operations were also based in Virginia, but unlike Pope, he did represent the state. In fact, Virginia contributed no less than 5 infantry brigades in Jackson's Corps, 2 of the 3 cavalry brigades in Stuart's Cavalry and the majority of the army's artillery. [Editor's Note: I try to be unbiased, but for the record I'm a Virginian :-). ]