Could wartime call-ups include civilian specialists?

Could a wartime call-up include civilian specialists who had never formally served?

Yes. Selective call-ups can target specialist skills as well as former service, depending on the force's needs.

Recall liability does not follow one uniform rule for every person. Eligibility and timing depend on an individual's specialism and skill. A navy might recall recent veterans, but it could also call civilian specialists who had never formally served. Reserve mobilization therefore depends on identifying scarce capabilities and planning selective call-ups rather than merely summoning a fixed block of former sailors.