The Domino Theory states which of the following?
Two democratic countries will never go to war with each other.
Communism and capitalism can never mutually coexist in the world and will always be in conflict.
The United States has a duty to prevent the spread of communism in Western Europe.
The impact of communism can never spread into Europe because wealthy nations will have no reason to embrace an end to private property.
Once one country falls under the influence of communism, the neighboring countries are likely to follow.
In the Russian Revolution, the Tsarist monarchy was replaced by .
autocracy
capitalism
oligarchy
fascism
communism