In the wake of the arrival of the Black Ships (Perry's fleet), Shinsengumi (a group who guarded Kyoto during the end of Tokugawa Shogunate) was established in order to cope with the rise of the movement advocating for the expulsion of foreigners as well as political disturbance.
黒船襲来後の攘夷の高揚と国内の政争により新選組誕生した。