There were transcribed statements referencing examples of conflicts with others over the power of Yamato sovereignty [tale of the Yamato Takeru (no mikoto)] in "Nihonshoki" (Chronicles of Japan), but no details of this process were available to us.
『日本書紀』などにはそれを窺わせる記述（ヤマトタケル説話など）が残されているが、詳細な過程は不詳である。