For the Greeks (or more particularly the Athenians) any system which excluded power from the whole citizen-body and was not a tyranny or monarchy was described as an oligarchy. Oligarchies were perhaps the most common form of city-state government and they often occurred when democracy went wrong.
Answer:
The main reasons the US got involved in the war was because of nationalism, imperialism, militarism, and forming allies. Many countries were scared of Germany's nationalism. Imperialism helped Germany with its markets making it stronger.
Autocracy. An autocracy is a system of government in which supreme power is concentrated in the hands of one person, whose decisions are subject to neither external legal restraints nor regularized mechanisms of popular control
