sentences:  Bragg transported all of his infantry by railroads from Tupelo, Mississippi, to Chattanooga, Tennessee, while his cavalry and artillery moved by road.By moving his army to Chattanooga, he was able to challenge Buell's advance on the city.Once his forces had assembled in Chattanooga, Bragg then planned to move north into Kentucky in cooperation with Lt. Gen. Edmund Kirby Smith, who was commanding a separate force operating out of Knoxville, Tennessee.