11
border states
The Northern slave-states of Kentucky and Missouri.
The Confederate leaders wanted as many states as possible to join them. Whether non-slave states could join was moot, since all of the non-slave states were in favor of preserving the Union.
The Border States were a key part of the US Civil War. They were slave states that did not join the Confederacy, it was important for the Union to prevent that they did not secede and join the South.
It was one of the slave-states of the Upper South, which were less dedicated to slavery than the Deep South.
Missouri, Kentucky, Maryland, Delaware and West Virginia were all slave states that remained in the Union.
They were not in favor of succeeding
The Confederacy was officially wound-up about a month after Lincoln's death. There were certainly no new states wanting to join the Confederacy by then. The last four states to join were Arkansas, Tennessee, Virginia and North Carolina, after the firing on Fort Sumter in April 1861. The other four slave-states of the Upper South were partly in sympathy with the South, but still remained loyal.
The Union was a name used to note to the federal government of the United States, which was supported by th twenty free states and five border slave states. It was opposed by 11 Southern slave states that declared secession to join together to form the Confederacy. The Confederate States of America (also called the Confederacy, the Confederate States, and the CSA) was the government set up from 1861 by 11 southern slave states of the United States of America.
The southern states were the Confederacy. All the states from Virginia down to Texas, Florida, Mississippi etc. were in the Confederacy.
what were the slave state that did not secede and join the confederancy
The US states of Kentucky, Missouri, Maryland and Delaware were known as border states. They did not join the Confederacy and were still slave states.