I like Calicascadia! Nice name for it.
I'm working on an outline for a Pacific America Defense Force that can pull in all the Pacific-based units, land sea and air.
I'd prefer the nuclear deterrent stay in some kind of supra-federal hands, but if things go sour in a few years goal #1 is to get control of the SSBNs outside of Seattle.
By my estimation the PADF could maintain about 40% of the existing US Navy and Marine Corps as well as the state national guards. Enought to defend us and our allies against China or North Korea and build up a capability to respond to major disasters like earthquakes, wildfires, or pandemics.