Garibaldi fought for Italy Unity. He almost successfully united northern and southern Italy. He commanded and fought in many military campaigns that soon led to the Italian unification
Mazzini founded his patriotic movement of young men and called it "Young Italy". The movements goal was to create a united Italian republic. Mazzini's belief was that a popular uprising could create a unified Italy.
Cavour sent Sardinian troops into the Kingdom of Naples. After securing victories in these locations, Cavour organized plebiscites, to annex Naples to Sardinia.