Battle Summary: Mcclellan's forces advanced to within 15 miles of Richmond. On June 26th, Lee's forces attacked Union forces at Mechanicsville. The Union forces were victorious, but McClellan ordered a withdrawal to Gaines' Mill. There, Confederate forces broke Union lines the next day. McClellan then ordered a general withdrawal. Three more battles were fought, including one at Malvern Hill, in which Confederate troops were slaughtered, in an ill advised attempt to scale it. In the end howeve...