[eyedigress]

DC had no authority to keep them obligated to the union.

Show me where it is authorized. Anything not addressed in the Constitution is left to the states.

[DoodleDawg]

DC had no authority to keep them obligated to the union.

Article I, Section 8 gives Congress the authority "for calling forth the militia to execute the laws of the union, suppress insurrections and repel invasions".

[Bull Snipe]

So the states can form their own Air Force and Marine Corp because neither of these is mentioned in the Constitution.