It is difficult to believe that it seriously tried to invade and conquer, or subject, with only about thirty thousand men and such a small number of arrows that soon run short, which was the main weapon of that time.
本格的に侵攻し領土とする、または服属させるには、3万人程の人数で、当時の主力武器である弓の矢がすぐに尽きる程度の準備で来るとは考えにくい。