It is an incident or a war which originated from confrontation between Mochiuji ASHIKAGA, Kamakura Kubo (Governor-general of the Kanto region) and Norizane UESUGI, Kanto Kanrei (a shogunal deputy for the Kanto region), and for which Yoshinori ASHIKAGA, the sixth shogun of the Muromachi bakufu (Japanese feudal government headed by a shogun), ordered to suppress Mochiuji.
鎌倉公方の足利持氏と関東管領の上杉憲実の対立に端を発する、室町幕府6代将軍足利義教が持氏討伐を命じた事件、戦いである。