As we get closer to the trip, this will be updated.

But in the meantime we draw your attention to some recent changes in French motoring law.

All vehicle must carry a reflective jacket, which can be reached without leaving the vehicle in case of breakdown or accident. Cars and light vehicles must carry one reflective warning triangle, larger vehicles must carry two - one for the front and one for the rear.
It is mandatory in France to carry a full set of spare bulbs plus the following documents:
Registration document
Test certificate
Insurance certificate
Driving Licence
Passport

Your military vehicle must adhere to UK road regulations and display a valid tax disc at all times. Untaxed vehicles are now siezed on re-entry into the UK.