Answer: Dissension Lengthy Wars
Step-by-step explanation:
Communism is a system of philosophical, political, social organization and economical ideologies that advocates the elimination of private property but a profit-based economy with public ownership of the means of production.
It ultimately aims to ensure each person contributes and receives according to their abilities and needs.
Vietnam, China and Cuba are examples of communist countries.
The two ways that the Communists used to break down democracies are through dissension and lengthy wars.