Most of the time in monarchies the rule is passed down through the bloodline, so my train of thought is feudalism.
B) They did not take sides
Answer:
Under President Woodrow Wilson, the United States remained neutral until 1917. The experience of World War I had a major impact on US domestic politics, culture, spread around the globe and became the first world war in human history.
Explanation:
The short answer is that the Soviet Union is very rich in natural resources as well as their ideologies are polar opposite.