Rubuta ci gaba don wannan sakin layi - A cikin 1859, Faransa ta goyi bayan Masarautar Sardinia a cikin yaƙi da Austria, Yaƙin Austro-Sardinian. Napoleon III bai cika alkawuransa ga Cavour don yin yaƙi ba har sai an ci duk Masarautar Lombardy-Venetia. Bayan yaƙe-yaƙe na jini na Magenta
da Solferino, duka nasarar Faransa, Napoleon ya yi tunanin yaƙin ya yi tsada sosai don ci gaba kuma ya yi zaman lafiya daban a bayan bayan Cavour wanda Lombardy kawai za a ba shi.