But, the Choshu force (Nagato, Inaba and Bizen Province and Ronin-shishi) surged to Kyoto from three different places, namely Fushimi, Saga and Yamazaki on the 18th, and met the domain army at the Imperial Palace gate, whereupon Saigo, Masaharu IJICHI and others repulsed the Choshu force and also sent Satsuma army for rescue operations and further repulsed Choshu force at many places. (Kimmon no Hen (Conspiracy of Kimmon)).
しかし、18日、長州勢（長門国・因幡国・備前国・浪人志士）が伏見・嵯峨・山崎の三方から京都に押し寄せ、皇居諸門で幕軍と衝突すると、西郷・伊地知正治らは乾御門で長州勢を撃退したばかりでなく、諸所の救援に薩摩兵を派遣して、長州勢を撃退した（禁門の変）。