Chapter 1: Tick, Tock

Set in modern Hogwarts the headmaster, Neville Longbottom decides that he wants his students to adapt to different wizarding cultures of the world. He contacts the headmasters of different wizarding schools and they set out an exchange programme.

Harry Potter/Hetalia crossover

Based off of headcanons, hints of SuFin, GerIta and other ships I cannot be bothered to list.
Still understandable if you don't know what Hetalia is, but then why are you here if you don't know what Hetalia is?