) If there is no suitable location to retreat to the surviving attackers are destroyed.
) If there is no suitable location to retreat to the surviving attackers are destroyed.
（所以一般进攻部队的数量不应少于已知的防守部队的数量）如果进攻方无路可退，则直接被摧毁。
) If there is no suitable location to retreat to the surviving attackers are destroyed.
（所以一般进攻部队的数量不应少于已知的防守部队的数量）如果进攻方无路可退，则直接被摧毁。