anti-war revolutionaries led by future-Fascist dictator Benito Mussolini calling for violence to bring down the government. Giolitti could no longer rely on the dwindling reformist socialist elements and was forced to concede even further to the right, Giolitti dropped all anticlericalism and reached out to clericals which alienated his moderate liberal base leaving him with an unsteady coalition which collapsed in 1914. By the end of his tenure, Italians detested him and the liberal establishment for the fraudulent elections, the divided society, and the failure and corruption of trasformiso organized governments. Giolitti would return as Prime Minister only briefly in 1920, but the era of liberalism was effectively over in Italy. Italian colonial ventures began with the acquisition of the ports of Asseb in 1869 and Massawa in 1885 in what is now Eritrea. These areas were claimed by Ethiopia at the time, and when Ethiopia went into turmoil at the death of Emperor Yohannes IV Italy moved into the northern Ethiopian highlands. However, further expansion was checked by a revival of Ethiopian power under Emperor Menelik II which led to the defeat of Italian forces at the battle of Adua. However, Italy was still able to secure the northern highlands in the Treaty of Wuchale, ending its conflict with Ethiopia until 1935. Around the same time Italy began to colonize Somalia. It avoided the other powers carving out domains in that area but gradually gained the southern Somali coast beginning with the Sultanate of Hobyo and the Sultanate of Majeerteen in 1888 and continuing with gradual acquisitions until 1925 when Chisimayu Region belonging to the British protectorate of Zanzibar was given to Italy. The First World War (1914–1918) Italy entered the First World War in 1915 with the aim of completing national unity: for this reason, the Italian intervention in the First World War is also considered the Fourth Italian War of Independence, in a historiographical perspective that identifies in the latter the conclusion of the unification of Italy, whose military actions began during the revolutions of 1848 with the First Italian War of Independence. At the beginning of World War I Italy remained neutral, claiming that the Triple Alliance had only defensive purposes, and the war was started by the Austro-Hungarian Empire. However, both the central empires and the Triple Entente tried to attract Italy on their side, and in April 1915 the Italian government agreed (London Pact)