This is what are the cause of WWI and how it ended
Storyboard Text
Militarism was the first cause of the WWI because the leaders are building and upgrade their empire to gain more power.
Alliances is the second cause because with more people on each side, it could turn from a argument to a war.
Imperialism is a third cause because the leaders wanted to expand their power and wealth by controlling other countries.
Nationalism was the fourth cause because Serbia wanted a free country, without Austria-Hungary controlling them. That feeling led the the killing of Archduke Ferdinand.
Inventors and scientist were on both on each other sides, building and upgrading weapon to give their sides an advantage.
Later a few years, they sign a contract called "The Treaty of Versailles" which ended WWI. Germany was taken blamed for the war and had to give 1 million square miles of land away.