Respuesta :
List of Major American Wars
- The Revolutionary War (1775-1783)
- War of 1812 (1812-1815)
- Mexican - American War (1846-1848)
- American Civil War (1861–1865)
- Spanish-American War (1898)
- World War I (1914-1918)
- World War II (1939-1945)
- Korean War (1950-1953)
In 1864, the US was in the Civil War. The US is fighting itself, as it was split into two parts at the time: the Confederacy (South) and the Union (North).