2But as it was, the man endowed by nature to make the best use of all the arts of war, and particularly of its crucial moments, namely Caesar, as soon as he learned of the revolt, set out and marched by the same roads over which he had previously come, and by the vigour and speed of his passage in so severe a winter showed the Barbarians that an unconquered and invincible army was coming against them. For where it was incredible that one of his messengers or letter-carriers could make his way in a long time, there he was seen with his whole army, at once ravaging their lands and destroying their strongholds, subduing cities,