 Victor Emmanuel II then became the first king of a united Italy, and the capital was moved from Turin to Florence.In 1866, Victor Emmanuel II allied with Prussia during the Austro-Prussian War, waging the Third Italian War of Independence which allowed Italy to annexe Venetia.Finally, in 1870, as France abandoned its garrisons in Rome during the disastrous Franco-Prussian War to keep the large Prussian Army at bay, the Italians rushed to fill the power gap by taking over the Papal States.