US involvement

U.S. involvement in global affairs has evolved over time, typically characterized by diplomacy, military action, and economic engagement. Initially focused on domestic issues, the U.S. expanded its role internationally after World War I and significantly post-World War II, seeking to promote democracy, stability, and economic growth. This includes participating in alliances like NATO, responding to conflicts such as the Korean and Vietnam wars, and engaging in humanitarian efforts. More recently, U.S. involvement has addressed global challenges like terrorism and climate change, often using a combination of military, diplomatic, and economic tools to influence world events.