Timeline of United States military operations

This is a timeline of United States government military operations. The list through 1775 is based on Committee on International Relations (now known as the House Committee on Foreign Affairs). Dates show the years in which U.S. government military units participated. Items in bold are the U.S. government wars most often considered to be major conflicts by historians and the general public. Note that instances where the U.S. government gave aid alone, with no military personnel involvement, are excluded, as are Central Intelligence Agency operations.

Portions of this list are from the Congressional Research Service report RL30172.

1775–1783: American Revolutionary War: an armed struggle for secession from the British Empire by the Thirteen Colonies that would subsequently become the United States.

1776–1777: Second Cherokee War: a series of armed conflicts when the Cherokee fought to prevent the encroachment of American settlers into eastern Tennessee and eastern Kentucky; under British rule, this land had been preserved as native territory.

1776–1794: Cherokee–American wars: a continuation of the Second Cherokee War that included a larger number of native tribes attempt to halt the expansion of settlers into Kentucky and Tennessee

1785–1795: Northwest Indian War: a series of battles with various native tribes in present-day Ohio. The goal of the campaign was to affirm American sovereignty over the region and to create increased opportunities for settlement.

1786–1787: Shays' Rebellion: a Western Massachusetts debtor's revolt over a credit squeeze that had financially devastated many farmers. The federal government was fiscally unable to raise an army to assist the state militia in combating the uprising; the weakness of the national government bolstered the arguments in favor of replacing the Articles of Confederation with an updated governmental framework.

...
Wikipedia