What was the name of the U.S. war fought between the North and the South?

The U.S. war fought between the North and the South is known as the Civil War. This conflict occurred from 1861 to 1865 and was primarily rooted in the issues of slavery and states' rights. The Civil War was significant in that it led to profound changes in American society, including the abolition of slavery and the strengthening of the federal government. The war was characterized by numerous battles, significant loss of life, and a struggle over the future direction of the nation. Understanding the Civil War's context is crucial because it shaped the legislative, social, and economic landscape of the United States moving forward, particularly in terms of civil rights and federal power. The other wars mentioned, such as the Revolutionary War, which helped establish American independence, and the Spanish-American War, which resulted in territorial expansion, do not pertain to the conflict between the North and the South during the Civil War period.