The story of Jules Brunet, who inspired the character of Nathan Algren, played by Tom Cruise in the 2003 movie "the Last Samurai".
The French officer Jules Brunet played an active role during the Boshin War, leading the rebellion against the Imperial Nippon, in 1868-69.
"A revolution is forcing the Military Mission to return to France. Alone I stay, alone I wish to continue, under new conditions, the results obtained by the Mission, together with the Party of the North, which is the party favorable to France in Japan. Soon a reaction will take place, and the Daimyos of the North have offered me to be its soul". — Jules Brunet, Letter to Napoleon III