Is president dwight eisenhower developed the domino theory based on a fear of which possible event?

The fear of communism spread in the world

The domino theory articulated that if one country fell to communist forces, the other nations in the region would follow in suit and become members of the communist sphere. it became the dominant policy of the USA during the cold war and was used as a basis of USA intervention in countries that were attacked by communist forces such as South Korea and Vietnam.