Question: When did Italy enter the conflict where Albert I of Jef Tavernier's country fought?

full_context: Document 1: Kingdom of Italy: In October 1922, Mussolini took advantage of a general strike by workers and announced his demands to the government to give the Fascist Party political power or face a coup. With no immediate response, a small number of Fascists began a long trek across Italy to Rome which was known as the ``March on Rome '', claiming to Italians that Fascists were intending to restore law and order. Mussolini himself did not participate until the very end of the march, with D'Annunzio being hailed as leader of the march until it was learned that he had been pushed out of a window and severely wounded in a failed assassination attempt, depriving him of the possibility of leading an actual coup d'état orchestrated by an organization founded by himself. Under the leadership of Mussolini, the Fascists demanded Prime Minister Luigi Facta's resignation and that Mussolini be named Prime Minister. Although the Italian Army was far better armed than the Fascist paramilitaries, the Italian government under King Vittorio Emmanuele III faced a political crisis. The King was forced to decide which of the two rival movements in Italy would form the new government: Mussolini's Fascists or the anti-royalist Italian Socialist Party, ultimately deciding to endorse the Fascists.
Document 2: Military history of Italy during World War I: On 3 May 1915 Italy officially revoked the Triple Alliance. In the following days Giolitti and the neutralist majority of the Parliament opposed declaring war, while nationalist crowds demonstrated in public areas for it. (The nationalist poet Gabriele D'Annunzio called this period le radiose giornate di Maggio -- ``the sunny days of May ''). Giolitti had the support of the majority of Italian parliament so on 13 May Salandra offered his resignation to King Victor Emmanuel III, but then Giolitti learned that the London Pact was already signed: fearful of a conflict between the Crown and the Parliament and the consequences on both internal stability and foreign relationships, Giolitti accepted the fait accompli, declined to succeed as prime minister and Salandra's resignation was not accepted. On 23 May, Italy declared war on Austria - Hungary. This was followed by declarations of war on the Ottoman Empire (21 August 1915, following an ultimatum of 3 August), Bulgaria (19 October 1915) and the German Empire (28 August 1916).
Document 3: Pierre de Decker: In 1855 he became Minister of the Interior and the tenth Prime Minister of Belgium. As such he was the first leader of the government since the revolution of 1830 who dared to address the parliament in Dutch (Flemish). He attempted, by combining the moderate elements of the Catholic and Liberal parties, the impossible task of resolving the educational and other questions by which Belgium was distracted.
Document 4: Di Rupo Government: The Di Rupo Government was the federal cabinet of Belgium sworn in on 6 December 2011, after a record-breaking 541 days of negotiations following the June 2010 elections. The government included social democrats (sp.a/PS), Christian democrats (CD&V/cdH) and liberals (Open Vld/MR), respectively of the Dutch and French language groups. The government notably excluded the New Flemish Alliance (N-VA), the Flemish nationalist party which achieved a plurality and became the largest party. Its absence, together with the unwillingness of Open Vld to enter into an eight-party coalition that included the green parties, caused the government coalition to lack a majority in the Dutch language group. It was the first time that the Belgian prime minister had been openly gay, as Di Rupo became the world's first male openly gay head of government (and second of any gender, after Iceland's Jóhanna Sigurðardóttir). Elio Di Rupo became the first native French-speaking prime minister since 1979 and the first prime minister from Wallonia since 1974 and first socialist prime minister since 1974.
Document 5: Yale University: Between 1925 and 1940, philanthropic foundations, especially ones connected with the Rockefellers, contributed about $7 million to support the Yale Institute of Human Relations and the affiliated Yerkes Laboratories of Primate Biology. The money went toward behavioral science research, which was supported by foundation officers who aimed to "improve mankind" under an informal, loosely defined human engineering effort. The behavioral scientists at Yale, led by President James R. Angell and psychobiologist Robert M. Yerkes, tapped into foundation largesse by crafting research programs aimed to investigate, then suggest, ways to control, sexual and social behavior. For example, Yerkes analyzed chimpanzee sexual behavior in hopes of illuminating the evolutionary underpinnings of human development and providing information that could ameliorate dysfunction. Ultimately, the behavioral-science results disappointed foundation officers, who shifted their human-engineering funds toward biological sciences.
Document 6: Eduard Rhein Foundation: The Eduard Rhein Foundation was founded in 1976 in Hamburg (Germany) by Eduard Rhein. The goal of the foundation is to promote scientific research, learning, arts, and culture. This is done in particular by granting awards for outstanding achievements in research an/or development in the areas of radio, television and information technology.
Document 7: European Free Alliance: In 1981 six parties (VU, the Frisian National Party, Independent Fianna Fáil, the Party of German-speaking Belgians, the Party for the Organization of a Free Brittany and the Alsace-Lorraine National Association), plus three observers (the Union of the Corsican People, UPC, the Occitan Party and the Democratic Convergence of Catalonia, CDC), joined forces to form the European Free Alliance. Regionalist MEPs continued, however, to sit in different groups also after the 1984 election: the SNP in the Gaullist-dominated European Democratic Alliance; the VU, the Sardinian Action Party (PSd'Az) and Basque Solidarity (EA) in the Rainbow Group, together with Green parties; the SVP in the European People's Party group; the CDC with the Liberal Democrats; and Batasuna among Non-Inscrits.
Document 8: Military history of Italy during World War II: The participation of Italy in the Second World War was characterized by a complex framework of ideology, politics, and diplomacy, while its military actions were often heavily influenced by external factors. The imperial ambitions of the Fascist regime, which aspired to restore the Roman Empire in North Africa and the Mediterranean (the Mare Nostrum, or the Italian Empire), were partially met with the annexation of Albania and the Province of Ljubljana, and the occupation of British Somaliland and other territories, but ultimately collapsed after defeats in the East and North African campaigns. In July 1943, following the Allied invasion of Sicily, Benito Mussolini was arrested by order of King Victor Emmanuel III, provoking a civil war. Italy surrendered to the Allies at the end of the Italian Campaign. The northern half of the country was occupied by Germans with the fascists help and made a collaborationist puppet state (with more than 600,000 soldiers), while the south was governed by monarchist and liberal forces, which fought for the Allied cause as the Italian Co-Belligerent Army (at its height numbering more than 50,000 men), helped by circa 350,000 partisans of disparate political ideologies that operated all over Italy.
Document 9: Kaiser Wilhelm Institute of Anthropology, Human Heredity, and Eugenics: The Kaiser Wilhelm Institute of Anthropology, Human Heredity, and Eugenics was founded in 1927 in Berlin, Germany. When confronted with financial demands, the Rockefeller Foundation supported both the Kaiser Wilhelm Institute of Psychiatry and the Kaiser Wilhelm Institute of Anthropology, Human Heredity and Eugenics. The Rockefeller Foundation partially funded the actual building of the Institute and helped keep the Institute afloat during the Great Depression.
Document 10: Queen Elisabeth Medical Foundation: The Queen Elisabeth Medical Foundation (QEMF) is a Belgian non-profit organization, founded in 1926 by Elisabeth of Bavaria, wife of Albert I. She founded the organization, based on her experience with the wounded from the front-line during the First World War. The foundation wants to encourage laboratory research and contacts between researchers and clinical practitioners, with a particular focus on neurosciences. The QEMF supports seventeen university teams throughout Belgium.
Document 11: Military history of Italy during World War II: However Italy's conquests were always heavily contested, both by various insurgencies (most prominently the Greek resistance and Yugoslav partisans) and Allied military forces, which waged the Battle of the Mediterranean throughout and beyond Italy's participation. Ultimately the Italian empire collapsed after disastrous defeats in the Eastern European and North African campaigns. In July 1943, following the Allied invasion of Sicily, Benito Mussolini was arrested by order of King Victor Emmanuel III, provoking a civil war. Italy's military outside of the peninsula itself collapsed, its occupied and annexed territories falling under German control. Italy surrendered to the Allies at the end of the Italian Campaign.
Document 12: Lieve Maes: Lieve Maes (born 12 May 1960 in Brussels) is a Belgian politician and is affiliated to the N-VA. She was elected as a member of the Belgian Senate in 2010.
Document 13: Princess Elisabeth, Duchess of Brabant: Princess Elisabeth, Duchess of Brabant (; ; born 25 October 2001), is the heir apparent to the Belgian throne. The eldest child of King Philippe and Queen Mathilde, she acquired her position after her grandfather King Albert II abdicated in favour of her father on 21 July 2013.
Document 14: Triple Alliance (1882): The Triple Alliance was a secret agreement between Germany, Austria - Hungary, and Italy. It was formed on 20 May 1882 and renewed periodically until it expired in 1915 during World War I. Germany and Austria - Hungary had been closely allied since 1879. Italy sought support against France shortly after it lost North African ambitions to the French. Each member promised mutual support in the event of an attack by any other great power. The treaty provided that Germany and Austria - Hungary were to assist Italy if it was attacked by France without provocation. In turn, Italy would assist Germany if attacked by France. In the event of a war between Austria - Hungary and Russia, Italy promised to remain neutral.
Document 15: Jef Tavernier: Jef Tavernier (born 1 November 1951 in Aalter, East Flanders, Belgium) is a Belgian politician. He was once member of the party Green! ("Groen!").
ground_truth: 1915
sub_queries: Which country is Jef Tavernier from? Answer: Belgium
Albert I of Belgium >> conflict Answer: the First World War
when did italy enter the First World War Answer: 1915