American involvement refers to the active participation and intervention of the United States in the affairs of another country, specifically in this case, Vietnam. It includes military, political, and economic actions taken by the U.S. government.
Related terms
Cold War: A period of geopolitical tension between the United States-led Western Bloc and the Soviet Union-led Eastern Bloc after World War II.
Domino Theory: The belief that if one country falls under communist control, neighboring countries will also fall like dominoes.
Gulf of Tonkin Resolution: A 1964 U.S. congressional resolution that authorized President Lyndon B. Johnson to take military action in Vietnam without a formal declaration of war.