[Morris70]

I believe according to 1869 supreme court case an individual state is not permitted to Secede,
But a group of states are.

Going by declaration of independence only one state is needed, or a town for that matter.
If your seceding you would most likely view US supreme courts authority as any other nation would.
The US would most likely want their nuclear weapons back that are stored in Texas. Ukraine gave theirs back to Russia 5 years later.

[x]

I believe according to 1869 supreme court case an individual state is not permitted to Secede, But a group of states are.

How so? According to who or what?

I'm pretty sure secession by a group of states would be perceived as even more of a threat than secession by a single state.

[nomobs]

Come and get them