Which war did the US fight during the 1800?

Answer 1

The War of 1812

The Mexican-American WarThe US Civil War

The Spanish-American War

And dozens upon dozens of smaller wars against Native Americans and rebels in countries of the Western Hemisphere with American interests.

Answer 2

Many. The main ones were 1812 against Britain, 1846 against Mexico, 1861 against itself, 1898 against Spain, and many wars against American Indians.

Answer 3

The United States fought four key wars in the 1800s: the War of 1812, the Civil War, the Spanish-American War, and the Mexican-American War.

Answer 4

The Civil War.