Hi Honcho
If you havent already done so, contact the RFEA, they have branches throughout the uk and work hard to redeploy ex forces.
Try sites such as aviationjobsearch.com and flightinternational.com. There are often jobs on there which ask for minimal experience as ops assistants, mainly in ops and crewing. It is likely you will need some CAA or JAR ops knowledge tho. Try the CAA website for some pointers, maybe even call them to compare costs of UK and US courses.
It might be worthwhile applying to ground service companies like Servisair. You may have to start off on check-in and work your way through the ranks, but if you get into a small enough airport, you can expect to progress quicker. Do check they have their own dispatch teams tho before settling in.
Another thought, universities often loook for specialist tutors, i beleive the london university is recruiting now. See aviationjobsearch.com under company vacancies.
Unfortunately there is very little FAA licencing which can be converted to be CAA acceptable as they work on different ethics and law, but if you can spare the time and money, go for it, it shows willing and will give you more knowledge.
Best of luck!!