Arkansas, Tennessee, and Virginia each bordered at least one Union border state.
The confederate states that bordered the union states varied by time, as some states changed sides or became neutral. Virginia was the only one that stayed the same, bordering Ohio, Pennsylvania and Maryland.
Virginia.
Missouri, Kentucky, and Maryland all border Confederate states.
The border state of Maryland was a central state in the US Civil War, and had the border state of Delaware on its east, the Union State of Pennsylvania to its north, and the Confederate state of Virginia to its south.
Confederate state
Union state, with quite a few Confederate sympathisers.
Missouri, Kentucky, and Maryland all border Confederate states.
Missouri, Kentucky, and Maryland all border Confederate states.
Mississippi was a Confederate state
Mississippi was a Confederate state
Mississippi is a confederate state