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Fought between the alliance of the United States against the Northwest African Berber Muslim states known collectively as the Barbary States. These were Tripoli and Algiers, which were quasi-independent entities nominally belonging to the Ottoman Empire, and (briefly) the independent Sultanate of Morocco.
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Fought between the United States and the Ottoman Empire's North African regencies of Tripoli, Tunis, and Algeria known collectively as the Barbary states
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An armed conflict between the United States and the Centralist Republic of Mexico from 1846 to 1848 in the wake of the 1845 U.S. annexation of Texas, which Mexico considered part of its territory despite the 1836 Texas Revolution.
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The Spanish–American War was a conflict in 1898 between Spain and the United States, the result of American intervention in the Cuban War of Independence.
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Triple Alliance: Germany, Italy, and Austria-Hungary vs. Triple Entente: Britain, France, and Russia. The United States joined on the side of the Triple Entente in 1917.
5th-deadliest conflict in history, paving the way for major political changes, including revolutions in many of the nations involved. -
Axis Powers: Germany, Italy, Japan vs. Major Allied Powers: United States, Great Britain, France, and Russia
Most widespread war in history, and directly involved more than 100 million people, from more than 30 different countries. -
United States (as part of the United Nations) and South Korea vs. North Korea and Communist China.
Primarily the result of the political division of Korea by an agreement of the victorious Allies at the conclusion of the Pacific War at the end of World War II. -
United States and South Vietnam vs. North Vietnam
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War waged by coalition forces from 34 nations led by the United States against Iraq in response to Iraq's invasion and annexation of Kuwait.
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United States and the Coalition Forces vs. The Taliban regime in Afghanistan to fight terrorism.
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United States and Coalition Forces vs. Iraq
