sentences:  Following the battle, Robert E. Lee took command of Confederate forces in Virginia, and he led his forces to victory in the Seven Days Battles, which effectively brought the Peninsula Campaign to a close.In late June 1862, while the Army of the Potomac was fighting the Seven Days Battles, Lincoln appointed John Pope to command the newly-formed Army of Virginia.On July 11, Lincoln summoned Henry Halleck from the Western Theater of the war to take command as general-in-chief of the army.