Which war was fought by the United States in the 1900s?

The Korean War is indeed one of the significant conflicts in which the United States was involved during the 1900s. This war took place from 1950 to 1953 and was a pivotal event during the Cold War era. It involved the United States supporting South Korea in its fight against the communist forces of North Korea, which was backed by China and the Soviet Union. The conflict highlighted the global struggle between communism and democracy, and it was the first major confrontation of the Cold War, establishing a pattern of U.S. military involvement in various conflicts around the world.

In contrast, while World War I and the Spanish-American War also occurred in the 1900s, they took place in earlier decades. The Civil War, however, occurred from 1861 to 1865, well before the 1900s. Understanding the context of the wars can provide insight into U.S. military history and its involvement in international conflicts during that century.