system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
What were the main causes and motivations behind the United States' involvement in the Vietnam War?
gpt
The United States became involved in the Vietnam War primarily due to its policy of containment during the Cold War. It aimed to prevent the spread of communism, fearing a domino effect in Southeast Asia if South Vietnam fell to communist forces. The U.S. also sought to protect its interests and uphold its commitment to its allies.