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.