Since you're on a preparedness board, you could consider a degree in Emergency Management. It's multi-disciplinary and you sound like you have a wealth of personal life experience that can be used in the field. I could see you being specialized in communications in general (print, visual, and radio). Your training background would be invaluable. The military background could be useful in "homeland security" (which I consider a subset of EM) if you so desire.

This field is not limited to government positions, as you may find work in the business sector in "business continuity", something that you should be familiar with in the military after 25 years as Continuity of Operations. With 25 years, you are probably pretty good at navigating the world of interpersonal relations and can get what you need.