Until December 31, 2004, young men in Italy were required to fulfill a period of military service. This could include membership in the army, the police force, or other government agencies.
On September 16, 1920, Pier Giorgio wrote to his friend Carlo Bellingeri and mentioned the following: "The 22nd of September I'm going to Biella for the military medical exam." Having passed the physical, he planned to fulfill his military obligation upon the completion of his university degree. On April 17, 1924, he wrote from Pollone to a German friend Nisse Leitgebel: "When I’ve finished my studies at the end of this year, I want to do my military service; right afterwards I’ll plan a trip to Germany." Later that year, his close friend, Marco Beltramo, entered the airforce academy in Livorno. Pier Giorgio wrote to Marco on October 23, 1924: "...I have made my calculations and if I want to graduate in March I must study intensely mornings and evenings including all holidays and if I want my diploma in July I can only go away on one or two Sundays. And I must also work in a hurry because the years rush by and I must still serve my country..."
All of Pier Giorgio's plans and calculations were cut short, however, with his unexpected death from polio in 1925.