Causes of WW1

What caused WW1? It was more than just one event that lead to World War One. There were three primary reasons for the start for World War One. those reasons were Nationalism, Militarism, the Assassination Of Franz Ferdinand, and the collapse of the alliance system.
The reason why Nationalism was a cause of WW1 was because Nationalism caused a problem for Austria-Hungary and the Balkans, areas comprised of many conflicting national groups. The ardent Panslavism of Serbia and Russia were willing to support its Slavic brother conflict with Austria-Hungary's Pan-Germanism.
The reason why Militarism was a cause of the was because All the countries inside the hostile camps were building large armies and navies during the pre-war years. As a result, a class of professional and powerful military officers developed and tended to control the civil authorities. In addition, before the event happened, the militarise of each country had drawn up complete plans for mobilization. These plans only awaited the go-ahead signal.
The reason why Nationalism was a cause was because it caused a political change. Which weakened the monarchies, and it uplifted two bitter appose ideologies. this was why Nationalism was a cause of WW1.
And the biggest issue for last. This is the last cause of WW1. This was The assassination of the Franz Ferdinand. Franz Ferdinan was assassinated along with his wife. Two bullets had shot him and his wife.
These were the reasons for WW1.