Prosperity, followed by economic depression. A few smaller wars in places around the world. The change from coal to oil inspires the Gran Chaco War in South America. The rise of fascism, and the spread of communism. Improvements in travel, communication, and many other things.
world war 1
war
World War 1.
no he wasn't
the british
World War 1
20 years
120 million
World war 1 was the only war between these empires .
it was very bad
Japan
20 years