... His cavalry had reported the turnpike full of troops and wagons moving toward Nashville, but the force east of Stone's River soon attracted his attention. Reconnoissance by staff-officers revealed Beatty 's line, enfilading Polk in his new position. It was evident that Polk must be withdrawn or Beatty dislodged. Bragg chose the latter alternative, and Breckinridge, against his earnest protest, was...