The Balkans have such a complex history that I haven't dug into it because it feels like I'd need a whole decade before I could really get a understanding of it.

In lieu of a good book recommendation, I'd suggest checking out Balkan Odyssey on YouTube - they're a communist channel that obviously is focused on the Balkans. They haven't produced a video essay on the Bosnian war yet but I think it's probably only a matter of time before they do.

They have done stuff that goes over Eastern Europe over the period of the 90s though so hopefully it's a reasonable starting point for you.