Can't believe I missed this post, way too busy lately. That's some great and rare footage in the video, some of it I've never seen, thanks for the share. This version of the song was made after the war in 90s was finished and we were free from the communist terror, so we could finally sing our songs in the open. It's very popular in Croatia today. Here is an old time version from "back in the days" which includes English subs - https://invidious.0011.lt/watch?v=-YouBeWgXco