More than one-third of the Confederate army failed to reach the Glendale battlefield

The cautious General Benjamin Huger, whose name is pronounced "You-Jee," was supposed to launch the first attack on the Union center but was thwarted by a barricade of downed trees in his path. Huger decided against sending out personnel to clear the obstruction and instead cut a new path through the trees. After losing an artillery battle while advancing against the extreme Union left at Malvern Hill, General Theophilus Holmes decided against moving his infantry forward. Lee's plan did not heavily rely on them, but General John B. Though they were not a major factor in Lee's plan, General John B. Magruder's troops were blocked by Holmes's immobile force and, thus, more than one-third of the Confederate army failed to reach the Glendale battlefield.

The majority of the Union army was uncommitted as a result of Lee's generals' mistakes, allowing them to move reinforcements to vulnerable areas. Just before 5:00 p.m., Lee dispatched General James Longstreet's division straight for the Glendale intersection, much to his dismay. 25,000 of Lee's planned over 70,000 soldiers were defeated at Glendale due to mistakes made by the Confederate leadership.