Final answer:
The term that describes the states near the border between the Union and the Confederacy during the American Civil War is 'border states', including Maryland, Missouri, Kentucky, Delaware, and later West Virginia.
Step-by-step explanation:
The term that describes the states located near the border between the Union and the Confederacy during the American Civil War is Border States. These states were Maryland, Missouri, Kentucky, and Delaware. They were called Border States because they bordered both the Union and the Confederacy.
The states located near the border between the Union and the Confederacy during the American Civil War are known as the border states. These states included Maryland, Missouri, Kentucky, and Delaware. They were significant strategically due to their geographic location and resources. While these states did not secede and join the Confederacy, their loyalties were divided, and they were scenes of crucial political and military maneuvers by both the Union and the Confederate governments. Additionally, West Virginia, which separated from Virginia, joined the Union as a free state in 1863.