During the Cold War , how were the policy of containment and the domino theory related

The United States thought that if Communism could not be contained, then countries would fall to Communism like dominoes.

Explanation:

polisit can also mean a body of citizens. in modern historiography, polis is normally used to indicate the ancient greek city-states, like classical athens and its contemporaries, and thus is often translated as "city-state". the body of citizens came to be the most important meaning of the term polis in ancient greece.