Who is General Robert E. Lee from Personal Memoirs of U.S. Grant and what is their importance?

Commander of the Confederate Army. Lee was in contact with Grant a couple of times prior to the end of the war. When Grant asked Lee to surrender, Lee said that he didn't feel the cause was impossible but agreed that surrender would mean an end to the bloodshed. Lee formally surrendered a short time later at Appomattox. Grant noted that Lee appeared in a new uniform and that his emotions were hidden throughout the meeting.