How did the battle of 2nd manassas affect the wars outcome?

The Second Battle of Manassas, fought from August 28 to 30, 1862, significantly bolstered Confederate morale and solidified General Robert E. Lee's reputation as a formidable military leader. The victory allowed Lee to gain control of Northern Virginia and paved the way for his first invasion of the North, culminating in the Maryland Campaign. This battle also contributed to the Union's leadership struggles, leading to the appointment of General George B. McClellan as the commander of the Army of the Potomac. Ultimately, the Confederate victory at Manassas prolonged the war and intensified the conflict between the North and South.