Which war was primarily fought to combat the spread of communism?

The Vietnam War was primarily fought to combat the spread of communism, particularly in Southeast Asia. The conflict arose during the Cold War period when the U.S. sought to prevent the domino effect of nations falling under communist influence, as observed with the concern over Vietnam potentially spreading communism to neighboring countries like Laos and Cambodia. The U.S. involvement was rooted in the belief that if one country fell to communism, others in the region would soon follow. This war was characterized by significant military engagement, political struggle, and social upheaval, making it a prominent example of the fight against communism during the Cold War era.

In contrast, while the Persian Gulf War and World War II involved significant geopolitical themes, they were not primarily focused on the spread of communism. The Cold War itself was a period of tension and rivalry between the U.S. and the Soviet Union, emphasizing ideological battles between communism and capitalism, but it was not a direct conflict like the Vietnam War.