men reached within of the parked trains, but Imboden's command repulsed their advance. Buford heard Kilpatrick's artillery in the vicinity and requested support on his right. Kilpatrick's men had moved toward Hagerstown and pushed out the two small brigades of Chambliss and Robertson. However, infantry commanded by Brig. Gen. Alfred Iverson drove Kilpatrick's men through the streets of town. Stuart's remaining brigades came up and were reinforced by two brigades of Hood's Division and Hagerstown was recaptured by the Confederates. Kilpatrick chose to respond to Buford's request for assistance and join the attack on Imboden at Williamsport. Stuart's men pressured Kilpatrick's rear and right flank from their position at Hagerstown and Kilpatrick's men gave way and exposed Buford's rear to the attack. Buford gave up his effort when darkness fell. Lee's rearguard cavalry clashed with Federal cavalry in the South Mountain passes in the Battle of Boonsboro on July 8, delaying Union pursuit. In the Battle of Funkstown on July 10, Stuart's cavalry continued its efforts to delay Federal pursuit in an encounter near Funkstown, Maryland, which resulted in nearly 500 casualties on both sides. The fight also marked the first time since the Battle of Gettysburg that Union infantry engaged Confederate infantry in the same engagement. Stuart was successful in delaying Pleasonton's cavalry for another day. By July 9 most of the Army of the Potomac was concentrated in a line from Rohrersville to Boonsboro. Other Union forces were in position to protect the outer flanks at Maryland Heights and at Waynesboro. By July 11 the Confederates occupied a , highly fortified line on high ground with their right resting on the Potomac River near Downsville and the left about southwest of Hagerstown, covering the only road from there to Williamsport. Meade telegraphed to general-in-chief Henry W. Halleck on July 12 that he intended to attack the next day, "unless something intervenes to prevent it." He once again called a council of war with his subordinates on the night of July 12, which resulted in a postponement of an attack until reconnaissance of the Confederate position could be performed, which Meade conducted the next morning. By that time, Lee became frustrated waiting for Meade to attack him and was dismayed to see that the Federal troops were digging entrenchments of their own in front of his works. Confederate engineers had completed a new pontoon bridge over the Potomac, which