| Treaty between the Kingdom of Italy and the Kingdom of the Serbs, Croats and Slovenes signed at Rapallo, 12 November 1920 | |
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&sq=Envato&lang=en&file=File:43Trattato_Rapallo.jpg) Prime ministers Giolitti and Vesnić with other conference delegates after signing of the Treaty of Rapallo | |
| Type | Border agreement |
| Context | First World War |
| Signed | 12 November 1920 |
| Location | Rapallo, Italy |
| Replaced by | Treaty of Rome (1924) |
| Signatories | |
| Parties | |
| Language | Italian, Serbo-Croatian |
| Events leading to World War II |
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The Treaty of Rapallo was an agreement between the Kingdom of Italy and the Kingdom of Serbs, Croats and Slovenes in the aftermath of the First World War. It was intended to settle the Adriatic question, which referred to Italian claims over territories promised to the country in return for its entry into the war against Austria-Hungary, claims that were made on the basis of the 1915 Treaty of London. The wartime pact promised Italy large areas of the eastern Adriatic. The treaty, signed on 12 November 1920 in Rapallo, Italy, generally redeemed the promises of territorial gains in the former Austrian Littoral by awarding Italy territories generally corresponding to the peninsula of Istria and the former Princely County of Gorizia and Gradisca, with the addition of the Snežnik Plateau, in addition to what was promised by the London treaty. The articles regarding Dalmatia were largely ignored. Instead, in Dalmatia, Italy received the city of Zadar and several islands. Other provisions of the treaty contained safeguards for the rights of Italian nationals remaining in the Kingdom of Serbs, Croats and Slovenes, and provisions for commissions to demarcate the new border, and facilitate economic and educational cooperation. The treaty also established the Free State of Fiume, the city-state consisting of the former Austro-Hungarian Corpus separatum that consisted of Rijeka and a strip of coast giving the new state a land border with Italy at Istria.
The treaty was met with a degree of popular disapproval in both countries. In the Kingdom of Serbs, Croats and Slovenes it was unpopular with Slovenes and Croats, as it represented a loss of national territory where about a half million Slovenes and Croats lived. Zadar lost significance when it became an Italian semi-enclave, which allowed Split to overtake it in significance in Dalmatia. The Port of Rijeka suffered from the loss of trade with the hinterland, causing an economic decline. In Italy, the claim to Dalmatia relinquished in the Treaty of Rapallo contributed to fueling the myth of the mutilated victory. The myth was created during the Paris Peace Conference, where the Italian delegation was unable to enforce the Treaty of London, and perpetuated the view that Italy had won the war but its victory was compromised by an unjust peace.
The Treaty of Rapallo was also condemned by the Italian general Gabriele d'Annunzio, who previously had seized Rijeka with his troops, establishing there a state known as the Italian Regency of Carnaro. He resisted efforts to remove him from the city until the Italian Navy drove him out in the clash known as Bloody Christmas, so that the Free State of Fiume could be established. The city-state was abolished when Italy annexed the city four years later under the Treaty of Rome.