Since the end of the 12th century, the Kamakura bakufu, based on the samurai class, had reallocated its territory to the samurai through several wars to meet the self-propagating desires of the samurai forces, but when the Hoji Battle of 1247 resulted in complete Tokuso sensei (autocracy by the shikken [regent for the shogun], who were members of the Hojo clan) and political stability was established, wars, that presented opportunities for territory reallocation, stopped occurring.
12世紀末以来、武士階層を基盤とする鎌倉幕府は、数度の戦乱を通じて所領を基盤たる武士階層に再配分し、武士団の持つ自己増殖欲求に応えてきたが、宝治元年（1247年）の宝治合戦により得宗専制が完成して政治的安定が実現すると、所領再配分の機会となる戦乱の発生自体が見られなくなった。