Finland has maybe 1000 men who are trained to NATO standards. If there is a Russian invasion, current conscript army become police force to handle local population and logistics, while NATO overtakes the country.
It is not 1940 something.
It is not 1940 something.
Perhaps the specific example I gave of Finland does not hold, but I think the spirit of my example still does.
First profi army becomes senior force, that trains whomever wants to hold a gun (second army). There is never political support to draft third army (like everyone). Remains of first army flee after government collapses. Political regime changes.