On 27 April 1945, while the Northern Italy was being freed from the German occupation, an article signed by Pietro Nenni was published by "Avanti!" with the title "Vento del Nord" ("Wind of North"). The leader of PSIUP, exalting the struggle of partisans who succeeded in ousting or forcing the surrender of nazi fascists, found, within the will of redemption and renovation of northern people, the "wind" which would have swept away the residuals of the regime that governed Italy for over twenty years, a "liberation wind against the enemy from outside and those from inside".