Greater Italy - World War I

World War I

See also: The Kingdom of Italy's entry into World War I and Italy in World War I - from neutrality to intervention

Italy signed the London Pact and entered World War I with the intention of gaining those territories perceived by irredentists as being Italian under foreign rule. According to the pact, Italy was to leave the Triple Alliance and join the Entente Powers. Furthermore, Italy was to declare war on Germany and Austria-Hungary within a month. The declaration of war was duly published on 23 May 1915. In exchange, Italy was to obtain various territorial gains at the end of the war. In April 1918, in what he described as an open letter "to the American Nation" Paolo Thaon di Revel, Commander in Chief of the Italian navy, appealed to the people of the United States to support Italian territorial claims over Trento, Trieste, Istria, Dalmatia and the Adriatic, writing that "we are fighting to expel an intruder from our home."

The outcome of the First World War and the consequent settlement of the Treaty of Saint-Germain met some Italian claims, including many (but not all) of the aims of the Italia irredenta party. Italy gained Trieste, Gorizia, Istria and the city of Zara . In Dalmatia, despite the Treaty of London, only territories with Italian majority as Zadar with some Dalmatian islands, such as Cres (Cherso), Lošinj (Lussino) and Lastovo (Lagosta) were annexed by Italy, because Woodrow Wilson, supporting Yugoslav claims and not recognizing the treaty, rejected Italian requests on other Dalmatian territories.

The city of Fiume in the Kvarner was the subject of claim and counter-claim because had an Italian majority, but was not promised to Italy in the London Pact (see Italian Regency of Carnaro, Treaty of Rapallo, 1920 and Treaty of Rome, 1924) and become Italian in 1924..

The stand taken by the irredentist Gabriele D'Annunzio, which briefly led him to become an enemy of the Italian state, was meant to provoke a nationalist revival through Corporatism (first instituted during his rule over Fiume), in front of what was widely perceived as state corruption engineered by governments such as Giovanni Giolitti's.

D'Annunzio briefly annexed to this "Regency of Carnaro" even the Dalmatian islands of Krk and Rab, where there was a numerous Italian community.