Week" and confirmed the traditional gradualist and parliamentary position of the "historical" leadership of PSI, saying that the revolt was: At the end of the same month, on 28 June 1914, the assassination of Archduke Franz Ferdinand in Sarajevo shifted Italian attention on the European dynamics which will lead to World War I, opposing interventionist to neutralist, until the entry into war of Italy on 24 May 1915. Avanti! during WWI In 1914–1915, Avanti! supported an important campaign for the absolute neutrality towards the opposite sides in WWI. After maintaining that position, decided by the vast majority of PSI, Benito Mussolini pushed the socialist newspaper into an interventionist campaign with his articles as director. Thanks to his retinue within the party, Mussolini asked to the national direction of PSI to endorse his new line or otherwise he would resign, as he did in the following day. The new interventionist newspaper of Mussolini, Il Popolo d'Italia, would be published on 15 November 1914, with syndicalists and dissidents from the Socialist Party. On 23 November, Mussolini was expelled from the Socialist Party and the satirical cartoonist of Avanti!, Giuseppe Scalarini, drew the cartoon Giuda for the newspaper, representing Mussolini, with a dagger and the money of betrayal, approaching silently to hit Christ (the socialism) in the back. Giacinto Menotti Serrati was appointed as new director of Avanti! during all the WWI, and he will be one of the leaders of the maximalist side of PSI and he will adhere in 1924 to the diktat of Lenin and Trotsky, joining the Communist Party of Italy. Five squadrist assaults against Avanti! Between 1919 and 1922, Avanti! was attacked and devastated by five squadrist assaults: Assault against Avanti! of 15 April 1919 in Milan On 15 April 1919, in Milan, nationalists, fascists, officer cadets and arditi were responsible for the first squadristi assault, during which they burnt down the headquarters of Avanti!. Under the title Viva l'Avanti! ("Long live Avanti!"), the first comment about the fact said: On 23 April 1919, the newspaper, printed in Turin, launched a "solidarity plebiscite" urging its readers and militants to subscribe to support the rebuilding of the Milan headquarters. On 3 May 1920, Avanti! reappeared in the city. Attack on the Roman headquarters of Avanti! In July 1920, the headquarter of Avanti! in Rome was besieged by a group of arditi during clashes with workers and tram drivers who