At the beginning of the US Civil War, the "southern" border States were Kentucky and Missouri. In this answer, Maryland is excluded in that although it was a pro=southern slave State, it cannot be considered a border State.
The Southern States seceded from 1860-1865, during the course of the Civil War.
Maryland was an important border state because it surounded DC. If Maryland seeced DC would be surounded by southern states and Lincoln would have no chance.
Southern States.
The Union in the American Civil War represented the free states (meaning slave-free states) plus five border slave states in the north of America. The Confederate States of America (the Confederacy) comprised the eleven southern slave states which had seceded from the United States of America.
Mississippi.
At the beginning of the US Civil War, the "southern" border States were Kentucky and Missouri. In this answer, Maryland is excluded in that although it was a pro=southern slave State, it cannot be considered a border State.
There were 430,929 slaves in the Border States.
The eleven "Southern" states that seceded from the Union were all "slave" states. The slave holding states of Missouri, Kentucky, Maryland and Delaware were termed to be "border" states and geographically, none of them can be describes as "Southern" states, especially Delaware.
The three border states during the US Civil War were Missouri, Kentucky and Maryland. The were slave states but did not join the Confederacy. Delaware also had slaves and was not "on the border" between the North and the South
What were 5 border states during the civil war
Maryland, Delaware, Kentucky, Missouri
Kentucky
The Confederacy
Atlanta
During the US Civil War, some people in the Union favored the Southern cause for independence.Many of these people lived in the so-called "Border States". Slaveholders in Missouri, Kentucky and Maryland were often known for being sympathetic to the Confederacy.
During the American Civil War there were five states which stayed neutral and were given the name "border" states. They were called border states because they each bordered a free state and were aligned with the union. The five border states were Delaware, Kentucky, Maryland, Missouri, and West Virginia.