what was the causes of world war 1
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary.hese treaties meant that if one country was attacked, allied countries were bound to defend them. Before World War 1, the following alliances existed: 1  Russia and Serbia. 2  Germany and Austria-Hungary. 3  France and Russia. 4  Britain and France and Belgium.