The Long Road to War(2018)
Videos: Trailers, Teasers, Featurettes
We all learned in schools that the WWI began with the assasination of Franz Ferdinand done by a young Bosnian Gavrilo Princip. In fact, the war was brewing much longer.
The Long Road to War - watch online: streaming, buy or rent
Currently you are able to watch "The Long Road to War" streaming on Netflix.