Italian Republican Party (PRI). He then decided not to resign immediately as secretary of the DC, wanting to bring the party behind him, at least until a new congress. He started an active foreign policy, along the lines of the so-called "neo-atlantism", implementing a more autonomous foreign policy from the United States, presenting Italy as the main regional power of the Mediterranean Basin, trying to avoid the increase of Soviet Union's sphere of influence over the Arab countries. However, he failed to leave a mark in domestic politics, despite his ambitious proposal of a 10-year plan for the development of public school, which was approved by the Parliament but not implemented. His economic policy was characterized by an increasing public spending. The unprecedented concentration of power that he had achieved was also the main reason of his second government's decline. The outraged conservative opposition resulted in a progressive breakdown of the internal majority faction, "Democratic Initiative". In January 1959, a conspicuous group of Christian Democrats started voting against their own government, forcing Fanfani to resign on 26 January 1959, after only six months in power. On 16 February 1959, Antonio Segni sworn in as new prime minister. In March 1959, Fanfani resigned as party's secretary too, and Aldo Moro became the new leader. After few weeks, he founded a new faction, known as "Nuove Cronache" ("New Chronicles"). In party's congress in October 1959, Moro was slightly confirmed secretary, after a thought battle with Fanfani, who was defeated thanks to the decisive vote of the right-wing faction of Mario Scelba and Giulio Andreotti. When the Italian Liberal Party (PLI) withdrew its support to Segni's government, Fanfani cooperated with Moro, attempting to establish a new centre-left government, with a case-by-case socialist support. However, this pact was strongly opposed by ecclesiastical hierarchies as well as the usual opposition of the DC's right-wing. After Fanfani's failure, Fernando Tambroni was appointed new prime minister. Tambroni, a right-wing conservative, received a decisive vote of confidence by the neo-fascist Italian Social Movement (MSI). The MSI had been banned by any type of political power since its birth under the theory of the "Constitutional Arch", which stated that any government or party which had voted the Italian Constitution, had to refuse any relationship with fascist and monarchist forces, seen as anti-constitutional groups. Strikes and revolts causing some casualties erupted through the country, and Tambroni had to resign within