This 'Battle of Arita-Nakaide', also known as 'a Battle of Okehazama in Saigoku' (the western provinces of Japan), marked the watershed event of the Takeda clan's fall and the Mori clan's rise to power.
この「有田中井手の戦い」は「西国の桶狭間の戦い」と呼ばれ、武田氏の衰退と毛利氏の勢力拡大の分水嶺となった。