illustrates "domino theory," an idea that drove US foreign policy in south and east Asia in the mid-twentieth century. What did supporters of this theory want to limit the spread of?
Supporters of the domino theory wanted to limit the spread of communism in South and East Asia. They believed that if one country in the region fell to communism, it would lead to a chain reaction of neighboring countries also becoming communist, like a line of falling dominoes. This idea was used to justify US intervention in countries such as Vietnam and Korea during the Cold War.
