"Spanish Royalists" . "crosses the Andes" . . "Crossing on the Andes" . . . "crossing the Andes" . "crossed the Andes in 21 days" . "difficult crossing the Andes" . . "crossed" . . "1817-02-13" . "crossing of the Andes" . . . . "Campaign across the Andes" . . . . . . "crossed the Andes Mountains" . . . . "Crossing of the Andes" . . . . "starts crossing the Andes" . "across the Andes" . "crossed the Andes" . . . "Crossing of the Andes" . . . . . "Army of the Andes" . "Patriot forces successfully enter Chile" . .