 Complete the following phrase:  In May 1862, after the evacuation of Norfolk by Southern forces during the Peninsula Campaign, he aided in the construction of the defenses of Richmond on the James River around Drewrys Bluff. A short time later, he led his brigade at the Battle of Seven Pines, and the Battle of Malvern Hill. After the defense of Richmond, Mahones brigade was assigned from Hugers division, to the division of Richard H. Anderson and fought at the subsequent battle of 