Preparations were made during the night for a general engagement the next day.
Sherman was in command of the left wing, while Thomas held the center, and Hooker the right, and they had planned to sever communications between Bragg and Longstreet, and thus keep the Confederate army divided.
Early on the 24th Sherman moved against the Confederate right, and with little opposition occupied the northern end of Missionary Ridge. The Confederates, after discovering this advantageous position taken by Sherman, fought desperately in the afternoon to regain it, but were finally repulsed.
While this was going on, General Hooker, with a division of Sherman's army, was making a desperate struggle for the capture of Lookout Mountain, whose rugged crests towered above the clouds. This mountain was ably defended by the Confederates, but they were finally pushed back by overwhelming numbers and made their final stand within the breastworks about the Craven house, but were finally dislodged from this place and retired within their entrenchments in the valley.
This has been termed "The Battle in the Clouds."
On the morning of the 25th preparations were made for the final battle on Missionary Ridge. The attack was made by General Sherman, and it seemed that the Confederates must recede from the terrific onslaught, but they succeeded, after a stubborn struggle, in repulsing the Federals at this particular time, and they were pushed back by General Hardy, who captured several hundred prisoners. The Federals, quickly re-forming their lines, renewed the assault and, after waiting for Hooker to bring up his division, Grant ordered a general advance, and the battle was now on in earnest. Bragg opened on them from the crest of Missionary Ridge with fifty pieces of artillery and a line of musketry. Even this did not stop the impetuous charge. The first line of entrenchments of the Confederates was carried with little opposition, and, as the Confederates retired through other brigades, the confusion was great, and the retreat became almost a rout.
Had it not been for a division of North Carolinan soldiers under Major Weaver, who succeeded in rallying his troops, and was successful in holding the Federals in check, the retreat would have become a rout of the entire Confederate army.