This battle was a part of the Gettysburg Campaign. The Union was led by George G. Meade and the Confederates were led by Robert E. Lee. 93,921 Union forces and 71,699 Confederate forces battled here. An estimated 51,112 people died in this battle. The Battle of Gettysburg started on July 1, 1863 an dlasted for 3 days. In the end the union came out on top and won the battle.