GoodnightVienna, CallingEngland, has a post on the Localism Bill/Maastricht Treat - one that, as ever, is a really good read. Whilst noting all the denials about there being no intention to create an EU military force, the position of HRH, etc, on a personal level the following extract is extremely important:
"Hansard 1st Feb 1993 - citizenship of the EU not renouncable:Our politicians would do well to note that, on a personal basis, I was not asked about this; I did not give my permission for this to happen; as far as I am concerned my citizenship is mine, no-one else's; I will decide to which country or state I wish that citizenship to apply - so perhaps said politicians and the EU may wish to "Foxtrot Oscar"!
"For as long as a person is a British national, that person will be a European citizen, under the terms of the treaty and the Bill. As was said earlier, if someone wishes to renounce British nationality, certain
consequences will follow ; but there is no separate provision whereby a person can remain a United Kingdom national but renounce citizenship of the European union."