Final answer:
At the Battle of Gettysburg, from July 1-3, 1863, the Union forces defeated the Confederate forces, marking a significant turning point in the Civil War with heavy casualties on both sides.
Step-by-step explanation:
During the Battle of Gettysburg, which lasted for three days in July 1863, the Confederate forces led by General Robert E. Lee was defeated by the Union forces led by General George Meade.
Battle of Gettysburg
Over three days in July, from the 1st to the 3rd in 1863, the Union forces, the U.S. Army of the Potomac, led by General George Meade, defeated the Confederate forces under the command of General Robert E. Lee at the Battle of Gettysburg. The climax, known as Pickett's Charge, saw a massive Confederate assault on the Union center falter with over half of the attacking Confederates becoming casualties. This turning point in the Civil War resulted in staggering losses, with approximately 23,000 Union and about 28,000 Confederate casualties. Lee's retreat signaled a significant shift in the war's momentum toward the Union.