This move was accelerated due to the Mongol invasion attempts against Japan, and the measures taken by the bakufu against this move appeared in the forms of Tokuseirei (ordering the return of land sold and the dissolution of debts) and the tyranny of the patrimonial head of the main branch of the Hojo clan.
この動きは13世紀後半の元寇によって加速し、幕府の対応策は徳政令発布や得宗専制という形で現れた。