List of wars involving the United States

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This is a list of military conflicts, that United States has been involved in. There are currently 123 military conflicts on this list, 5 of which are ongoing. These include major conflicts like the American Revolutionary War, the War of 1812, the Mexican–American War, the American Civil War, the Spanish-American War, World War I, World War II and the Gulf War. It also includes US involvement in widespread periods of conflict like the Indian Wars, the Cold War (including the Korean War and the Vietnam War), and the War on Terror (including the Iraq War, the War in Afghanistan, and others).

Five military engagements encompassing four wars, all of which are interventions, currently involve the US: the Yemeni Civil War, the Somali Civil War, the Syrian Civil War, and the Gaza War.

  USA victory

  Another result *

  USA defeat

  Ongoing conflict

*e.g. a treaty or peace without a clear result, status quo ante bellum, result of civil or internal conflict, result unknown or indecisive, inconclusive