Brig. Gen. Emory Upton's brigade also met with heavy fire from Brig. Gen. Thomas L. Clingman's brigade and fell back to its starting point. To Upton's right, the brigade of Col. William S. Truex found a gap in the Confederate line through a swampy, brush-filled ravine. As Truex's men charged through the gap, Clingman swung two regiments around to face them, and Anderson sent in Brig. Gen. Eppa Hunton's brigade from his corps reserve. Truex became surrounded on three sides and was forced to withdraw. While action continued on the southern end of the battlefield, the three corps of Hancock, Burnside, and Warren were occupying a 5-mile line that stretched southeast to Bethesda Church, facing the Confederates under A.P. Hill, Breckinridge, and Early. At the border between the IX and V Corps, two divisions of Early's Corps—Maj. Gen. Robert E. Rodes on the left, Maj. Gen. John B. Gordon on the right—attacked at 7 p.m. Warren later described this attack as a "feeler", and despite some initial successes, both Confederate probes were repulsed. Although the June 1 attacks had been unsuccessful, Meade believed that an attack early on June 2 could succeed if he was able to mass sufficient forces against an appropriate location. He and Grant decided to target Lee's right flank. Meade ordered Hancock's II Corps to shift southeast from Totopotomoy Creek and assume a position to the left of Wright's VI Corps. Once Hancock was in position, Meade would attack on his left from Old Cold Harbor with three Union corps in line, totaling 31,000 men: Hancock's II Corps, Wright's VI Corps, and Baldy Smith's XVIII Corps. Meade also ordered Warren and Burnside to attack Lee's left flank in the morning "at all hazards," convinced that Lee was moving troops from his left to fortify his right. Hancock's men marched almost all night and arrived too worn-out for an immediate attack that morning. Grant agreed to let the men rest and postponed the attack until 5 p.m., and then again until 4:30 a.m. on June 3. But Grant and Meade did not give specific orders for the attack, leaving it up to the corps commanders to decide where they would hit the Confederate lines and how they would coordinate with each other. No senior commander had reconnoitered the enemy position. Robert E. Lee took advantage of the Union delays to bolster his defenses. When Hancock departed Totopotomoy