They were Union states & territories which Confederates invaded and attempted to take.
Confederates in Union Missouri and in Union Maryland attacked Union troops and tried to take over those states long before any Union army invaded a single Confederate state.
Civil War began in the Union and was still fought there until its final months.
castlegreyskull: "However, had they won the war, they would have been a seperate nation, they did not have any designs on taking over the rest of the Union."
Nonsense, Confederates wanted to destroy and absorb as much of the United States as they possibly could, nor would they stop there:
Alright, I get it. You hate the South, and you are a big know it all. But you are still wrong. Bye.
Well here I agree with you, except with your choice of the word "Destroy." I have long argued that with the windfall of all the extra money from Europe, acquiring all of the border states was just a matter of time, and so would have been taking over all the territories. The economic focus of the Continent would have shifted from New York/Washington to New Orleans/Mobile.
Once the economic interests of the border states and territories were better realized through the CSA, they would have joined it. Eventually the New York/Washington Axis would have become the leadership of a smaller Rump Country.
Lincoln himself noted that if they lose Kentucky, they've lost it all.