Mezue ahịrịokwu na-esonụ: Mgbe o jisịrị ihe ịga nke ọma na-achọ nkwado nke Britain ma na-eme onwe ya na France na Napoleon III na
N'ọgbakọ nke Paris na 1856 na njedebe nke agha ahụ, Count Cavour mere ndokwa maka nzukọ nzuzo ya na eze ukwu France. Na 1858, ha zutere na Plombières-les-Bains (na Lorraine), ebe ha kwenyere na ọ bụrụ na ndị France ga-enyere Piedmont aka ịlụso Austria ọgụ, nke ka na-achị Alaeze Lombardy-Venetia n'ebe ugwu Italy, a ga-enye France Nice na Savoy.