In 1927, he was expelled from the "Liceo National" of Bastia and founded the pro-Italian magazine "Primavera", where he published the poems "Musa canalinca" and "Rime notturne".
Giovacchini was disappointed with the moderate positions of the Movimento Autonomista Corso and decided to move to Italy in 1930 to study medicine at the Pisa University.
One of the main accusations he received was that he considered Pasquale Paoli (the hero of Corsica) as the precursor of the Corsican irredentism in favor of the unification of the island to Italy.
In 1936, Giovacchini got his degree and, as a member of the Fascist Party, he quickly volunteered to fight in Ethiopia and successively in Spain, where he was wounded and got the "bronze" medal of honor.
This was the case of Petru Giovacchini, who (after his initial poems Musa canalinca and Rime notturne, done when young) wrote his main literary works in Italy.