confront Lee. Since most of his cavalry was occupied elsewhere, he decided to use infantry for a reconnaissance in force. Hancock's II Corps followed the Richmond–Hanovertown Road (also known as Atlee Station Road) to Totopotomoy Creek. Finding that Lee was firmly entrenched on the far bank, Hancock's men began digging in. Warren's V Corps extended the II Corps line to the left. Wright's VI Corps was sent northwest from Hanovertown toward Hanover Court House. Burnside's IX Corps was in reserve near Haw's Shop and Sheridan's Cavalry Corps was far to the Union left, near Old Church. The Confederate line, from left to right, consisted of the corps of A.P. Hill, Breckinridge's independent division, and the corps of Anderson and Early. No action beyond minor skirmishing occurred during the day. Grant began a general advance on May 30. Wright's corps was to move south against A.P. Hill on the Confederate left, while Hancock attacked across the creek against Breckinridge in the center, and Warren moved west toward Early along Shady Grove Road. Wright's advance became bogged down in the swampy land near Crump's Creek, delaying his VI Corps until late in the day. Hancock's skirmishers captured some of Breckinridge's rifle pits, but made little progress against the main Confederate line. Meade ordered Burnside's reserve corps to assist Hancock, but they arrived too late in the day to affect the battle. On the Union left, Warren moved the rest of his V Corps across the creek and began probing west. Lee ordered Early's corps, which was entrenched across Warren's path, to attack the V corps with the assistance of Anderson's corps. Early planned to send the division of Maj. Gen. Robert E. Rodes on a flanking march along Old Church Road, turning north at Bethesda Church, and following paths that his cavalry had precut through the underbrush to smash into Warren's rear areas. As the V corps moved forward slowly, Warren became concerned about the safety of his left flank. He directed Crawford's division to move south along a farm track to Old Church Road, where they erected simple breastworks. Crawford sent forward the brigade of Col. Martin Davis Hardin, men of the Pennsylvania Reserves whose enlistments were due to expire that day. Rodes's men marched directly into Hardin's brigade at about noon and routed them. Crawford's entire division formation collapsed, exposing the V Corps' left flank. Unfortunately for the Confederates, Rodes