 
The foreign relations of the Italian Republic are the Italian government's external relations with the outside world. Located in Europe, Italy has been considered a major Western power since its unification in 1860. Its main allies are the NATO countries and the EU states, two entities of which Italy is a founding member. Italy was admitted to the United Nations in 1955, and it is a member and a strong supporter of a wide number of international organisations, such as the Organisation for Economic Co-operation and Development (OECD), the General Agreement on Tariffs and Trade and World Trade Organization (GATT and WTO), the Organization for Security and Co-operation in Europe (OSCE), the Council of Europe, and the Central European Initiative.
Its turns in the rotating presidency of international organisations include the Organization for Security and Co-operation in Europe, the G7 and the EU Council. Italy is also a recurrent non-permanent member of the UN Security Council. Italy is an important actor in the Mediterranean region and has close relations with the Romance-speaking countries in Europe and Latin America. Although it is a secular state, Rome hosts the Pope and the headquarters of the Catholic Church, which operates a large diplomatic system of its own. Italy is currently commanding various multinational forces and has significant troops deployed all over the world for peacekeeping missions, and for combating organized crime, illegal drug trade, human trafficking, piracy and terrorism.
History.
National unification.
The "Risorgimento" was the era from 1829 to 1871 that saw the emergence of a national consciousness. The Northern Italy monarchy of the House of Savoy in the Kingdom of Sardinia, whose government was led by Camillo Benso, Count of Cavour, had ambitions of establishing a united Italian state. In the context of the 1848 liberal revolutions that swept through Europe, an unsuccessful first war of independence was declared on Austria. In 1855, the Kingdom of Sardinia became an ally of Britain and France in the Crimean War, giving Cavour's diplomacy legitimacy in the eyes of the great powers. The Kingdom of Sardinia again attacked the Austrian Empire in the Second Italian War of Independence of 1859, with the aid of France, resulting in liberating Lombardy. On the basis of the Plombières Agreement, the Kingdom of Sardinia ceded Savoy and Nice to France, an event that caused the Niçard exodus, that was the emigration of a quarter of the Niçard Italians to Italy, and the Niçard Vespers.
In 1860–1861, Giuseppe Garibaldi led the drive for unification in Naples and Sicily conquering the Kingdom of the Two Sicilies (the Expedition of the Thousand), while the House of Savoy troops occupied the central territories of the Italian peninsula, except Rome and part of Papal States. This allowed the Sardinian government to declare a united Italian kingdom on 17 March 1861. In 1866, Italy allied with Prussia during the Austro-Prussian War, waging the Third Italian War of Independence which allowed Italy to annex Venetia. 
After the Third Italian War of Independence (1866), when the Veneto and Friuli regions were ceded by the Austrians to the newly formed Kingdom Italy, Istria and Dalmatia remained part of the Austro-Hungarian Empire, together with other Italian-speaking areas on the eastern Adriatic. This triggered the gradual rise of Italian irredentism among many Italians in Istria, Kvarner and Dalmatia, who demanded the unification of the Julian March, Kvarner and Dalmatia with Italy. The Italians in Istria, Kvarner and Dalmatia supported the Italian Risorgimento: as a consequence, the Austrians saw the Italians as enemies and favored the Slav communities of Istria, Kvarner and Dalmatia. During the meeting of the Council of Ministers of 12 November 1866, Emperor Franz Joseph I of Austria outlined a wide-ranging project aimed at the Germanization or Slavization of the areas of the empire with an Italian presence:
 ;templatestyles src="Template:Blockquote/styles.css" / ;His Majesty expressed the precise order that action be taken decisively against the influence of the Italian elements still present in some regions of the Crown and, appropriately occupying the posts of public, judicial, masters employees as well as with the influence of the press, work in South Tyrol, Dalmatia and Littoral for the Germanization and Slavization of these territories according to the circumstances, with energy and without any regard. His Majesty calls the central offices to the strong duty to proceed in this way to what has been established.
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. Italian unification was completed and shortly afterwards Italy's capital was moved to Rome. Later Italy formed the Triple Alliance (1882) with Germany and Austria.
World War I.
Italy defeated the Ottoman Empire in 1911–1912. By 1915, Italy had acquired in Africa a colony on the Red Sea coast (Eritrea), a large protectorate in Somalia and administrative authority in formerly Turkish Libya. Outside of Africa, Italy possessed a small concession in Tientsin in China (following the Boxer Rebellion) and the Dodecanese Islands off the coast of Turkey.
In 1915, Italy abrogated its alliance and declared war on the Austro-Hungarian Empire, leading to bloody conflict mainly on the Isonzo and Piave fronts. Britain, France and Russia had been "keen to bring neutral Italy into World War I on their side. However, Italy drove a hard bargain, demanding extensive territorial concessions once the war had been won".
In a deal to bring Italy into the war, under the London Pact, Italy would be allowed to annex not only Italian-speaking Trentino and Trieste, but also German-speaking South Tyrol, Istria (which included large non-Italian communities), and the northern part of Dalmatia including the areas of Zadar (Zara) and Šibenik (Sebenico). Mainly Italian Fiume (present-day Rijeka) was excluded.
In November 1918, after the surrender of Austria-Hungary, Italy occupied militarily Trentino Alto-Adige, the Julian March, Istria, the Kvarner Gulf and Dalmatia, all Austro-Hungarian territories. On the Dalmatian coast, Italy established the first Governorate of Dalmatia, which had the provisional aim of ferrying the territory towards full integration into the Kingdom of Italy, progressively importing national legislation in place of the previous one. The administrative capital was Zara. The Governorate of Dalmatia was evacuated following the Italo-Yugoslav agreements which resulted in the Treaty of Rapallo (1920). After the war, the Treaty of Rapallo between the Kingdom of Serbs, Croats and Slovenes (later the Kingdom of Yugoslavia) and the Kingdom of Italy (12 November 1920), Italy annexed Zadar in Dalmatia and some minor islands, almost all of Istria along with Trieste, excluding the island of Krk, and part of Kastav commune, which mostly went to the Kingdom of Serbs, Croats and Slovenes. By the Treaty of Rome (27 January 1924), the Free State of Fiume (Rijeka) was divided between Italy and Yugoslavia. Also, Italy occupied southern Albania and established a protectorate over Albania, which remained in place until 1920.
The Allies defeated the Austrian Empire in 1918 and Italy became one of the main winners of the war. At the Paris Peace Conference in 1919, Prime Minister Vittorio Emanuele Orlando focused almost exclusively on territorial gains, but he got far less than he wanted, and Italians were bitterly resentful when they were denied control of the city of Fiume. The conference, under the control of Britain, France and the United States refused to assign Dalmatia and Albania to Italy as had been promised in the Treaty of London. Britain, France and Japan divided the German overseas colonies into mandates of their own, excluding Italy. Italy also gained no territory from the breakup of the Ottoman Empire.
Italy did not receive other territories promised by the Treaty of London, so this outcome was denounced as a "Mutilated victory". The rhetoric of "Mutilated victory" was adopted by Benito Mussolini and led to the rise of Italian fascism, becoming a key point in the propaganda of Fascist Italy. Historians regard "Mutilated victory" as a "political myth", used by fascists to fuel Italian imperialism and obscure the successes of liberal Italy in the aftermath of World War I. Italy also gained a permanent seat in the League of Nations's executive council.
Fascism and World War II.
The Fascist government that came to power with Benito Mussolini in 1922 sought to increase the size of the Italian empire and to satisfy the claims of Italian irredentists. Italian Fascism is based upon Italian nationalism and imperialism, and in particular seeks to complete what it considers as the incomplete project of the unification of Italy by incorporating "Italia Irredenta" (unredeemed Italy) into the state of Italy. To the east of Italy, the Fascists claimed that Dalmatia was a land of Italian culture whose Italians, including those of Italianized South Slavic descent, had been driven out of Dalmatia and into exile in Italy, and supported the return of Italians of Dalmatian heritage. Mussolini identified Dalmatia as having strong Italian cultural roots for centuries, similarly to Istria, via the Roman Empire and the Republic of Venice. To the south of Italy, the Fascists claimed Malta, which belonged to the United Kingdom, and Corfu, which instead belonged to Greece; to the north claimed Italian Switzerland, while to the west claimed Corsica, Nice, and Savoy, which belonged to France. The Fascist regime produced literature on Corsica that presented evidence of the island's "italianità". The Fascist regime produced literature on Nice that justified that Nice was an Italian land based on historic, ethnic, and linguistic grounds.
Mussolini promised to bring Italy back as a great power in Europe, building a "New Roman Empire" and holding power over the Mediterranean Sea. In propaganda, Fascists used the ancient Roman motto "Mare Nostrum" (Latin for "Our Sea") to describe the Mediterranean. For this reason the Fascist regime engaged in interventionist foreign policy. In 1923, the Greek island of Corfu was briefly occupied by Italy, after the assassination of General Tellini in Greek territory. In 1925, Italy forced Albania to become a "de facto" protectorate. In 1935, Mussolini invaded Ethiopia and founded Italian East Africa, resulting in an international alienation and leading to Italy's withdrawal from the League of Nations; Italy allied with Nazi Germany and the Empire of Japan and strongly supported Francisco Franco in the Spanish Civil War. In 1939, Italy formally annexed Albania. Italy entered World War II on 10 June 1940. The Italians initially advanced in British Somaliland, Egypt, the Balkans (establishing the Governorate of Dalmatia and Montenegro, the Province of Ljubljana, and the puppet states Independent State of Croatia and Hellenic State), and eastern fronts. They were, however, subsequently defeated on the Eastern Front as well as in the East African campaign and the North African campaign, losing as a result their territories in Africa and in the Balkans.
An Allied invasion of Sicily began in July 1943, leading to the collapse of the Fascist regime and the fall of Mussolini on 25 July. In the north, the Germans set up the Italian Social Republic (RSI), a Nazi puppet state with Mussolini installed as leader after he was rescued by German paratroopers. Some Italian troops in the south were organised into the Italian Co-belligerent Army, which fought alongside the Allies for the rest of the war, while other Italian troops, loyal to Mussolini and his RSI, continued to fight alongside the Germans in the National Republican Army. Also, the post-armistice period saw the rise of a large anti-fascist resistance movement, the "Resistenza". As result, the country descended into civil war; the Italian resistance fought a guerrilla war against the Nazi German occupiers and Italian Fascist forces, while clashes between the Fascist RSI Army and the Royalist Italian Co-Belligerent Army were rare. In late April 1945, with total defeat looming, Mussolini attempted to escape north, but was captured and summarily executed near Lake Como by Italian partisans. His body was then taken to Milan, where it was hung upside down at a service station for public viewing and to provide confirmation of his demise. Hostilities ended on 29 April 1945, when the German forces in Italy surrendered.
Republican era.
Italy became a republic after the 1946 Italian institutional referendum held on 2 June 1946, a day celebrated since as "Festa della Repubblica". This was the first time that Italian women voted at the national level, and the second time overall considering the local elections that were held a few months earlier in some cities. Under the