"The first thing that happened when the European powers went to war was the collapse of the Socialist International. No European socialist party had called the working class out in a general strike against the war and the SPD (by far Europe’s most powerful socialist party) had in early August 1914 unanimously voted its government war credits; the French followed suit. Socialist workers were aligned by their parties behind the war effort of each European government and socialist internationalism revealed itself to be a myth. But the situation in Italy proved to be radically different."
January 1, 1970
https://en.wikiquote.org/wiki/General_strike