Unification of Italy is described below:
1. Count Camillo De Cavour led the movement for unifying the different regons of Italy to become a nation state under his leadership. Sadinia pied-mont defeated Austrian forces in 1859 with the help of France.
2. In 1801 , under the leadership of Garibold: Italy forces marched into South Italy and kingdom of sicilies to overthrow the rule of spanish rulers.
3. In the war with Prussia, France withdraw the troops from Rome this led the papal states to finally join Italy and hence the process of unification of Italy was completed.