The culmination of the Chattanooga campaign, the battle began in the morning on November 25 with Sherman attempting to take Tunnel Hill. His attacks met with no success in the face of fierce Confederate resistance.
Grant ordered the Army of the Cumberland to advance against Missionary Ridge, and the attack began at 3:30 PM. Grant, doubting that the heavily fortified Missionary Ridge could be taken by a frontal assault, ordered that only the rifle pits at the base of the ridge be taken, with the troops to await further orders. Thomas launched a four division attack, about 23,000 men. The rifle pits were taken, and the Union troops began to come under heavy fire from Confederate positions on Missionary Ridge. They immediately began a charge up the ridge to the astonishment of Grant:
Our men drove the troops in front of the lower line of rifle-pits so rapidly, and followed them so closely, that rebel and Union troops went over the first line of works almost at the same time. Many rebels were captured and sent to the rear under the fire of their own friends higher up the hill. Those that were not captured retreated, and were pursued. The retreating hordes being between friends and pursuers caused the enemy to fire high to avoid killing their own men. In fact, on that occasion the Union soldier nearest the enemy was in the safest position. Without awaiting further orders or stopping to reform, on our troops went to the second line of works; over that and on for the crest—thus effectually carrying out my orders of the 18th for the battle and of the 24th for this charge.
I watched their progress with intense interest. The fire along the rebel line was terrific. Cannon and musket balls filled the air: but the damage done was in small proportion to the ammunition expended. The pursuit continued until the crest was reached, and soon our men were seen climbing over the Confederate barriers at different points in front of both Sheridan’s and Wood’s divisions. The retreat of the enemy along most of his line was precipitate and the panic so great that Bragg and his officers lost all control over their men. Many were captured, and thousands threw away their arms in their flight.
The battle of Missionary Ridge was the most stunning example in the War of a frontal attack against a fortified position succeeding. Bragg’s center was broken and his army routed, with headlong retreat being the only course of action open to him. Confederate and Union casualties were each about 10,000 with another 4000 Confederates taken prisoner. Many of the Army of the Cumberland Union troops went into battle yelling “Chickamauga! Chickamauga!” That defeat was now well avenged, and the Chattanooga Campaign was at an end. Here is the report of Major General George Thomas, commander of the Army of the Cumberland: