Which war was fought between the North and South regions of the United States?

The Civil War was fought between the Northern states (the Union) and the Southern states (the Confederacy) from 1861 to 1865. This conflict arose primarily due to issues related to slavery and states' rights, which deeply divided the nation. The war was a pivotal moment in U.S. history, ultimately leading to the abolition of slavery and significant changes in the social and political landscape of the country. Understanding this specific conflict helps highlight the regional tensions and the impact of the war on the nation’s development.