Although belated and not initiated as planned, the assaults by the divisions of A.P. Hill and Longstreet, under Longstreet's overall command, turned out to be the only ones to follow Lee's order to attack the main Union concentration. Longstreet's 20,000 men were not reinforced by the Confederate divisions of Huger and Jackson, despite their concentration within a three-mile radius. They assaulted the disjointed Union line of 40,000 men, arranged in a arc north and south of the Glendale intersection, but the brunt of the fighting centered on the position held by the Pennsylvania Reserves division of the V Corps, 6,000 men under Brig. Gen. George A. McCall, just west of the Nelson farm, north of Willis Church. (The farm was now owned by R.H. Nelson, but many locals still called it Frayser's or Frazier's Farm.) McCall's division included the brigades of Brig. Gen. George G. Meade on the right and Brig. Gen. Truman Seymour on the left, with the brigade of Brig. Gen. John F. Reynolds (led by Col. Seneca G. Simmons since Reynolds's capture at Boatswain's Swamp after Gaines's Mill) in reserve.