Respuesta :

It is because the Union victory placed the Confederacy on the defensive and ended Gen. Robert. E. Lee's most ambitious attempt to invade the Union's territory.

Answer:

Gettysburg Was the Turning Point of the War . The Battle of Gettysburg fought on July 1–3, 1863, was the turning point of the Civil War for one main reason: Robert E. Lee's plan to invade the North and force an immediate end to the war failed.