Identify the reasons Gettysburg and Vicksburg were important battles?

The Battle of Gettysburg, fought in July 1863, was a turning point in the Civil War, marking the end of Confederate General Robert E. Lee's invasion of the North and boosting Union morale. Vicksburg, which fell to Union forces on July 4, 1863, was crucial for controlling the Mississippi River, effectively splitting the Confederacy and allowing Union forces to secure vital supply lines. Together, these victories bolstered Union strategic advantage and contributed to the eventual defeat of the Confederacy.