Which civil war battle was the turning point of the war in the east

The Battle of Gettysburg was the turning point of the Civil War in the east. fought from July 1 to July 3, 1863, in Pennsylvania, this battle resulted in a decisive victory for the Union army and marked the last major Confederate offensive in the northern states. The Confederate army suffered heavy losses and was forced to retreat, effectively shifting the momentum of the war in favor of the Union.