Hi,
serving near Trieste in WWII sounds impossible, it must be the Isonzo-front in WWI, the southern section north of Trieste.
Some of the decoration proposals are in the Military Archive in Budapest, I found this address:
hadtortenelmi.leveltar@mail.militaria.huGive as many data of Kálmán Balogh as you can collect (birth place and date, mother's name) and ask for a copy of the proposal.
Best regards
Laszló