At the Battle of Chattanooga II on August 16, 1863, Colonel John T. Wilder'³ brigade of the Union 4th Division, XIV Army Corps marched to a location northeast of Chattanooga. On August 21, Wilder ordered the 18th Indiana Light Artillery to begin shelling the town. The bombardment successfully distracted the Confederates while the rest of the Union Army of the Cumberland crossed the Tennessee River well west and south of Chattanooga. When Confederates realized their mistake, they abandoned Chattanooga.
