Many things, but one was Austro-Hungarian domination in the Balkans.
Hitler started world war II
Germany
400000
WW1 Imperialism WW2 Fascism
GermanyRussia was the European power with the largest army at the outbreak of World War 1. Boasting an army of twelve million. It had a million more than Germany, who came in second.
because of the outbreak of world war 1
The Balkan state that played a great role in the outbreak of World War 1 was Serbia. It was under the control of the Austro-Hungarian Empire at the time, and a group of separatists murdered Archduke Ferdinand of Austria-Hungary while he was visiting Sarajevo. This sparked a chain of events that culminated in the outbreak of World War 1.
The assasination of Archduke Franz Ferdinand.
socialist organizations
It was the main cause
Himmler was a teenager at the outbreak of World War I and he studied the war and wanted to become an officer and he did.
Archduke Franz Ferdinand of Austria