Respuesta :

Some factors to which the start of WW1 can be traced are:
1) the rise of nationalism in Europe, for example among the Serbians and Bosnians
2) building of big military alliances in Europe (this is what make the conflict into a world war
3) the direct cause was the assassination of the Austrian Crown Prince Franz Ferdinand
positivespore27

(APEX)- Alliances meant that if one country was attacked, many more would be drawn into war.