In 801, Tamuramaro SAKANOUE, who was newly appointed as Seii Taishogun (a great general who subdues barbarians), went on an expedition and successfully subjugated Emishi/Ezo barbarians.
延暦20年（801年）には坂上田村麻呂が征夷大将軍として遠征し、夷賊（蝦夷）を討伏した。