My twin sister's late father-in-law's dad fought with the Italians at Caporetto, don't know anything else right now, i.e. what unit(s) he'd fought with.
Roy Harold Scherer Jr. a.k.a. Rock Hudson (1925-1985) stared in the 1957 A Farewell To Arms remake based on the 1929 Hemmingway novel concerning the WWI Austio-Italian front, including the Battle of Caporetto, YouTube has full English versions up, DMCA complaints not yet filed apparently, one's been up since 2013; its "Hollywood Clean", i.e. un or lightly soiled wardrobes & props, seens parts of it, not particularly interesting though might try to sit though all of it. Also should see the 1932 original starring Gary Cooper.