That is so cool to have your father's memoir - his story in his own words. I skim through my father's letters but they don't tell you much as soldiers were conscious that the letters would be read and censored. The motto during the war was "loose lips sink ships." Sometimes a letter would have a word cut own or inked out. The envelopes are signed by the censor. One letter just says, "somewhere in France."
Italian cousins I met who live in Argentina gave me a memoir written by their grandfather telling the story of how he came to Argentina. Family was already there but he was young and he didn't plan to leave Italy but with Mussolini and the problems going on there (and they didn't even have social media like today but there was still"social" media) much like today when one group doesn't like the way you think, he had to leave. The world can be a dangerous place.