Yes, that is good point for many kinds of businesses. I am a behavioral therapist who works with children with autism. I do intensive behavioral therapy in the home. I used to work in a different area with much more support, but my husband and I recently moved to a new city and I was entrusted with opening a new branch of our business. I have now begun seeing clients here, which is an underserved area (I am their only option at the moment). I am at a point where I am about to expand and hire and train new therapists, but it is a process which requires my presence and someone with training and credentials in our field. Basically, if I leave, there isn't anyone qualified to take over yet.May I ask why you "can't easily abandon" your business?
As a business executive, I see that aspect of the problem as easily the most malleable and solve-able.
A good business lawyer can help you craft a structure that would allow you to retain control and ownership while delegating authority to a capable manager, for example.
You might also be able to sell the business, pocket a nice payout, and re-invest that in a few years' time after your husband's done with his enlistment.
In any case, it seems pretty clear to me that the government/military side is the LEAST flexible, and your entrepreneurial/ownership situation the MOST flexible, of your situation. That would dictate that you explore as many possible disposal/delegation etc solution paths for the business as you can. Talk to a good business lawyer or consultant.
So I have the option to leave and sever their therapy services, or I can stay and try to expand and meet the need here.