Masako judged a sortie towards Kyoto the best course of action, so it was decided to launch an attack; samurai were quickly assembled, and on May 22 they were dispatched to converge on the capital from three sides, along the Tokaido (Eastern Sea road), the Tosando (Eastern Mountain road), and the Hokurikudo (the road through Hokuriku, the area on the Japan Sea side northwest of modern-day Tokyo).
政子の裁決で出撃策が決定され、素早く兵を集め、5月22日には軍勢を東海道、東山道、北陸道の三方から京へ向けて派遣した。