This appointment was to follow the example of Imperial Prince Niitabe, who in 731 had been given Heiba no ken (the right of supreme military power) over Kyoto and Kinai, and Kiyomori prepared for war by imposing forced military service and provisions in the Kinai and Kingoku provinces.
天平3年（731年）に京・畿内を対象に兵馬の権を与えられた新田部（にいたべ）親王の例に倣ったものであり、畿内近国に兵士役と兵糧米を課して臨戦体制を築いた。