Third Italian War of Independence

The Third Italian War of Independence was a war between the Kingdom of Italy and the Austrian Empire fought between June and August 1866.

The conflict paralleled the Austro-Prussian War and resulted in Austria conceding the region of Venetia (present-day Veneto, Friuli and the city of Mantua, the last remnant of the Quadrilatero) to France, which were later annexed by Italy after a plebiscite. Italy’s acquisition of this wealthy and populous territory represented a major step in the process of Italian unification.