In addition, since they were cut off from the supporting army of their comrades and only the soldiers of Shimazu family fought, there was an extremely strong morale as the army in spite of being small in size.
さらに味方の援軍を断って島津家の兵だけで戦ったことにより、少数ながらも軍としてのまとまりが非常にあったものと思われる。