Under the command of John Gregg, the Texas Brigade fought in the Battle of the Wilderness on 5–7 May 1864. It formed part of Charles W. Field's division in Longstreet's Corps and Bane was still the commander of the 4th Texas. On the second day, the II Corps broke the Confederate line just as Longstreet's corps reached the battlefield. When General Lee tried to lead the counterattack, the Texas Brigade refused to advance until their army commander went to the rear. The 800 men of Gregg's brigade stopped the Union advance, but half of the men became casualties. The 4th Texas lost 26 killed, 95 wounded, and three captured out of 207 men in the Wilderness. The regiment was lightly engaged at the Battle of Spottsylvania Court House on 8–21 May and also fought at other battles of the Overland Campaign including the Battle of Cold Harbor in early June. The Texas Brigade fought in the Siege of Petersburg and at the end of 1864, it was commanded by Colonel F. S. Bass while Bane still led the 4th Texas.