Fascism.
The Nazi party thought Jewish people were to blame. That was the main. Adolf Hitler was also against Gypsies, people with disorder's, and more.
The Germans were to blame
Serbia
Serbia
Germany was forced to take all the blame for World War I as dictated in the Treaty of Versailles.
Germany
Yes
Italian Campaign - World War I - happened on 1915-05-23.
Yes
The war guilt clause forced Germany to take all the blame for World War I.
Japan