In 1775, the American Revolutionary War began, a period in American history when British colonists looking to start their own nation, fought against oppressive British rule. After 8 years of battle, the British ultimately surrendered, allowing the colonies to become the independent country we now know as the United States.
The American Indian Wars (also known as: American Frontier Wars/First Nations Wars/Indian Wars) is the name commonly associated with the multiple armed conflicts occurring between the 17th century and the early 20th century in North America, between multiple nations, including The British, Americans, and Canadians, against numerous American Indian and First Nation tribes.
The War of 1812 (June 1812 – February 1815) started after the United States declared war on the United Kingdom in 1812. The war ceased in 1815, when a peace treaty was ratified by both nations, restoring a pre-war status quo.
The Vietnam War pitted communist North Vietnam and the Viet Cong against South Vietnam and the United States. The war ended when U.S. forces withdrew in 1973 and Vietnam unified under Communist control two years later.