Strife between Katsumoto HOSOKAWA, Muromachi bakufu (Japanese feudal government headed by a shogun) Kanrei (Shogun's deputy of the Muromachi Bakufu), and influential shugo daimyos (military governors-turned-provincial lords) including Mochitoyo YAMANA (later tonsured and renamed Sozen YAMANA) expanded nationwide except in some regions including Kyushu, and thereby triggering the advent of the Sengoku Period (Period of Warring States in Japan).
室町幕府管領の細川勝元と、山名持豊（出家して山名宗全）らの有力守護大名が争い、九州など一部の地方を除く全国に拡大、影響し、戦国時代(日本)に突入するきっかけとなった。