Hail Stonewall Jackson

for his tactical brilliance during his Valley Campaign. With only 17,000 men he ties down a force of 60,000 union soldiers, preventing them from reinforcing Gen. McClellan in his campaign to threaten Richmond.

McClellan, although he outnumbered the Confederates at Richmond, withdrew his troops, believing that he faced superior numbers there.
See the animation of this campaign at:

http://www.historyanimated.com/ValleyAnimation.html