On June 25, the bakufu never carried out any action; however, Choshu Domain believed in the words of bakufu and they themselves started expelling foreigners by firing on the ships of the United States that were passing the Straits of Shimonoseki (the Shimonoseki War).
5月10日、幕府が攘夷を実行に移すことはなかったが、長州藩はこれを信じて下関海峡を通過するアメリカ合衆国船を砲撃して遂に攘夷を決行してしまった（下関戦争）。