The Battle of Chancellorsville, Virginia, ended in Confederate victory at a cost of 24,000 casualties. Outnumbered 115,000 to 60,000, Lee drove the Union forces under Hooker back across the Rappahannock.
The Confederate army under General Bragg won a major tactical victory over Union forces at Chickamauga, Georgia. The three-day battle resulted in 34,000 casualties combined between September 18 and 20.
Most of General Lee’s army of 75,000 reached Gettysburg, Pennsylvania, on the evening of July 1. Most of the 90,000-man Union army of General George Meade arrived at Gettysburg that same evening. On July 2, Lee tried to attack Union positions from the left and right flanks, but Union troops repelled the attack. The next day, the Union army, which expected Lee to attack again on the flanks, reinforced its flanks. But Lee launched a frontal attack on the center of the Union lines, which came as a shock and a surprise. Some 15,000 Confederate...
The Battle of Shiloh (Pittsburg Landing), Tennessee, ended in Union victory. It was the bloodiest battle up until that point in American history, with more American casualties than the Revolution, War of 1812, and Mexican-American War combined. Union forces suffered 13,047 casualties and the Confederate side 10,699.