Massive sidetrack but there's a performance by a Finnish band called Horna, of a song called "Oi kallis kotimaa". I remember reading that it's about a famous battle in WWI or WWII involving a Hungarian regiment, but I can't find any information about it online, except in Finnish, which I regrettably do not speak. Could any friendly Finnish person please explain what "Oi kallis kotimaa" is about?

Thanks! And many apologies for hijacking the thread, again!