Delaware remained loyal to the Union. Maryland might have seceded had Lincoln not placed Federal troops around the state legislature, but the state remained in the Union. Kentucky did not secede but could not entirely be said to be loyal to the Union. It was officially neutral. About twice as many regiments from Kentucky joined the Confederacy as joined the Union, but it is likely that some Kentucky men joined with regiments from other states both north and south. Missouri was a slave state and never formally seceded. Although support for the South was strong, and a pro-Confederacy Army and legislature formed, the state remained in the Union. Estimates of the time say that Missouri was 90% for the Confederacy and 10% Union.
The last one to name here was West Virginia, which was part of Virginia until several counties banded together to secede from Virginia to rejoin the Union as a new state in 1863. West Virginia never existed as a slave state, having been brought into the Union after the Emancipation Proclamation, and is therefore a tricky but incorrect answer to this question.
The Border States. These were the slave-states that had voted to stay loyal. Kentucky, Missouri, Maryland, Delaware.
The Confederate border states were Delaware, Maryland, Kentucky, and Missouri. Although these states were geographically located on or near the border between the North and South, they did not secede from the Union to join the Confederacy during the American Civil War.
There were actually multiple slave states that remained in the Union. These states, known as border states, were: Delaware, Kentucky, Missouri and West Virginia.
Kentucky, Maryland, Delaware, and Missouri
Maryland, Delaware, Missouri, and Kentucky were border states that remained with the union during the civil war.
Border States refer to the slave states that remained loyal to the Union during the American Civil War. These states included Delaware, Kentucky, Maryland, and Missouri. They were strategically important because of their geographical location between the North and South.
The Border States. These were the slave-states that had voted to stay loyal. Kentucky, Missouri, Maryland, Delaware.
The Confederate border states were Delaware, Maryland, Kentucky, and Missouri. Although these states were geographically located on or near the border between the North and South, they did not secede from the Union to join the Confederacy during the American Civil War.
There were actually multiple slave states that remained in the Union. These states, known as border states, were: Delaware, Kentucky, Missouri and West Virginia.
There were five slave states that remained in the Union. Initially there were four -- Delaware, Maryland, Kentucky and Missouri. West Virgina separated from Virginia when it (Virginia) seceded from the Union. West Virginia was admitted to the Union in 1863 as a slave state. West Virgina remained in the Union making it the fifth slave state not to secede. These five slave states were called border states.
The slave states that remained loyal to the Union were Missouri, Kentucky, Maryland, and Delaware.
In the slave-states that had remained loyal - Missouri, Maryland, Kentucky, Delaware.
The Buffer States - or, somewhat more controversially, the Border States (implying that there was an official frontier.)
Weat Virginia Delaware, Maryland, Missouri, and Kentucky were five slave states that did not secede the Union, and the were were called border states.
The border states during the Civil War were Delaware, Kentucky, Maryland, and Missouri. They remained part of the United States but were also slave states.
Short-term, nothing - slavery was allowed to continue in the slave-states that had remained loyal. Long-term, the loyalty of these states helped the Union to win the war - which is what brought slavery to an end throughout the USA.
Delaware, Kentucky, Maryland, and Missouri were called border states during the Civil War. This is because they were slave states that remained part of the Union.