The idea came when my father researched about his family tree and I started to know about my great-grandfather who was an Alpino (Italian mountain infantry) who fought on WWI as artillery man. He died in 1957 so I never knew him, I know him only through photos and some things he left behind. In my youth everyone was always talking about WWII, which my grandfather did, and you can see many movies about it and books and such. Not so much about WWI.  In recent years something changed