However, when armed groups rose in various places in the end of the Heian period, chigyo-kokushu (provincial proprietor) and zuryo (the head of the provincial governors) began to send those who were excellent in military affairs to confront them.
ただし、平安時代末期に各地で武士団が勃興すると、知行国国主や受領もこれに対抗する形で武力に優れた人物を派遣する場合も出てきた。