Complete the following sentence: Meanwhile, Rosecrans' Army of the Cumberland retreated to Chattanooga after Chickamauga. Bragg pursued and promptly placed the city under siege. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk> <unk> Grant<unk>himself<unk>arrived<unk>to the city of October 23, and expanded the tenuous supply line.<unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Union victory at the
Battle of Lookout Mountain broke part of Bragg's line on November 23. a<unk>a<unk>a<unk>a<unk>a<unk>a<unk>a<unk>a<unk>a<unk> In the ensuing Battle of Missionary Ridge, the Confederate defenders were completely overrun and the siege was broken.<unk> In the ensuing Battle of Missionary Ridge, the Confederate defenders were completely overrun and the siege was broken. Battery of Bledsoe saw heavy action at Missionary Ridge, suffering a minimum of two casualties; all four of the battery's cannons were captured.