The use of rare footage and actual interviews with the main players of the wars, particularly Serbian president Slobodan Milošević and the controversial president of Republika Srpska Radovan Karadžić. Due to the extensive interviews with such crucial players of the conflict, this documentary was used as evidence by the International Criminal Tribunal for the former Yugoslavia during the prosecution of parties guilty of war crimes. The documentary won a BAFTA in 1996 for Best Factual Accuracy
To people wishing to gain an insight into the Yugoslav wars, this documentary (though not perfect) is perhaps the best introduction, covering events up to 1995.
The full documentary is on YouTube but it is preferable to watch it in six parts.
Part 1 - Enter Nationalism
Part 3 - The Wars of Independence
Part 4 - The Gates of Hell
Part 5 - A Safe Area
Part 6 - Pax Americana