1. Assassination of Archduke Franz Ferdinand
On June 28, 1914, Archduke Franz Ferdinand and his wife were assassinated by a Bosnian Serb.
Many chain events occurred and by early August of that same year, World War I had begun.
It provided Austria with an excuse to take action against Serbia.
He was assassinated because he had annexed provinces that had belonged to Serbia.

3. Militarism
Militarism is when the military is given a high profile by the government.
The militaries of many countries had begun to double due to other events surrounding what was going on in the world.
As countries were building armies, Britain and Germany had other ideas in starting up their own Navy and creating their own battleships and their own submarine boats.

5. Nationalism Nationalism- strong supporters of one’s country
Large areas of both Austria-Hungary and Serbia were home to different nationalist groups. All of whom wanted freedom from the states they lived in.
Germany’s nationalist group were called the Nazi’s

7. Imperialism
Imperialism is when countries take over new lands or countries and makes them subject to their rule.
Many lands were being conquered by large empires and the smaller empires had began to have problems with this.
This led into a big controversy and eventually war broke out between different empires among Europe