The danish 500Cs
From what I learned, an ex military machine - even though civilian from start like the Danish ones - cannot be certified to civil standards unless all maintenance history is traced, re-written to civilian standards, and found to be in compliance with the civilian standards throughout the history of the individual. Even though military organizations have excellent maintenance, like our Swedish military administration, their maintenence records are incompatible with the civil ones and they go by their own rules. Today, all maintenece of new military machines is performed and documented to civil JAR specs, which means that the new A109 Powers that have rolling in to the armed forces will have a market value when they are taken out of the military.
You can usually - in Europe - get a restricted category civil reg for an ex mil, but then someone has to have an approved EASA type certificate (supplemental) for the machine in question. Take the UH-1H, for example. There are seven approved STCs for UH-1H in the U.S., six of which were approved in Spain by the time they joined the EASA a few years back. So, if you have a Huey which is already on that STC it can be imported to Europe (if the yanks let you get am export certificate). If you find a military Huey, it can be certified on those STCs if the owner of the STC apporves it (expensive), then civil regged in restricted category, which usually means no cargo or passengers transported for hire, and that all on-bord must have a place in the mission crew. Basically, private flying and heavy lift in other words.
I'm ranting...