Causes of WWI

There were many causes to ww1. WW1 was between the Germans ,British , Austria-Hungary , France and Eventually the United States. One main cause of ww1 was that the arch-duke of Austria-Hungary Franz Ferdinand was assassinated and they then started pointing fingers at different countries. So then they started spending money on manufacturing weapons and they started stockpiling weapons in any event of war. The arch duke was assassinated by a Serbian nationalist of the Serbian nationalist movement known as the black hand. after it was known that it was the Serbians who committed the murder, Germany pressured Austria-Hungary to attack Serbia and convinced that the Serbian had conspired against them, they handed the Serbians an ultimatum which was a demand which if they did not meet it result in war.