The same general participants fought in both wars. The poor handling of the peace treaty of World War 1 had a large part in causing the second world war.
Note: this answer only discusses similarities. There were of course many differences not mentioned.Both wars involved many different countries, multiple theaters of war, and extreme destruction and...
World War I started as a long chain of events that began with a small assassination. Franz Ferdinand, the heir to the Austrian throne, was murdered by a Serbian terrorist group called the Black Hand,...