forced marches without halting day or night, covering double the usual distance at a stretch, [The ordinary day’s march, according to Tu Mu, was 30 _li_; but on one occasion, when pursuing Liu Pei, Ts’ao Ts’ao is said to have covered the incredible distance of 300 _li_ within twenty-four hours.] doing a hundred _li_ in order to wrest an advantage, the leaders of all your three divisions will fall into the hands of the enemy.