 Complete the following phrase:  Longstreet made significant contributions to several important Confederate victories, mostly in the Eastern Theater as one of Robert E. Lees chief subordinates in the Army of Northern Virginia. He performed poorly at Seven Pines by accidentally marching his men down the wrong road, causing them to arrive late, but played an important role in the Confederate success of the Seven Days Battles in the summer of 1862, where he helped supervise repeated attacks which drove the Union army away from the Confederate capital of Richmond. Longstreet led a devastating counterattack that routed the Union army at Second Bull Run in August. His men held their ground in defensive roles at Antietam and Fredericksburg. He did not participate in the Confederate victory at Chancellorsville, as he and most of his soldiers had been detached on the comparatively minor 