Quote Originally Posted by Ja'chyra
Where can I start, what training levels would they impose, what equipment would they use, whose publications would be used, which system of support would be used, which style of operations would be used, whose rank structure would be used, would it be tri-service, could they still swear to Queen and country, so many questions and so meany personalities would mean it would take decades.

Saying you would only need a new HQ is pretty niaive, no offense but if you don't work in that area you don't really know.
What i meant you wouldnt re-organize lets say British army.You could use your own equipment and You could swear to Queen and country as much as you would like.British Army would be an Army group.Commanding of one Army group doesnt effect other Army groups anyway.
It would be up to high command which part of your army would be suitable for certain assignments.Ofcourse in the long run EU would support its own weapons industry for its Army.But you cant say it doesnt work because European Armies differ of each other.You can count how many multi national operations have been succesfully completed after WWII.