Their case is unique in Europe.
Denmark is a state that is part of the organization "European Union".
The objective of the European Union is to create a Europe where citizens are moving freely through their territory and they all have the same currency, the euro (Although Denmark has not accepted the euro in other countries, France, Spain, Italy, Greece it is the currency).Any European citizen can travel through EU territory without a passport and the members states can not prohibit their entry into country.
In addition, when a citizen with a European passport travel to a non-European state, if the citizen has problems in that state, he may ask to help to the embassy of his country and if his country has no embassy, he may ask to help to the embassy of a country of the EU.
For example:
IF a person with European passport LOSEs his PASSPORT into of no-european state.
if the person stolen his MONEY AND CAN NOT GO BACK TO his COUNTRY
IF THIS COUNTRY(non-european)begin a WAR AND the person can not leave the this country,he may ask to help to a embassy of a member state and he CAN BE evacuate with the citizens of that country.
Constantine and Anne Marie have diplomatic protection of Denmark and Denmark is member of EU....
But I wonder:
If CONSTANTINE travel to a country and that country LOG IN WAR AND CLOSES THE AIR TRAFFIC AND he HAVE TO ASK TO HELP to AN EMBASSY TO LEAVE of this COUNTRY, AND only Greece is europen country with embassy in this country. Could Constantine ask to help to Greece?
It is not probable, but it demonstrates that the kings are a unique case in europe
I wonder why they haven't applied for full citizenship of i.e.
the UK, Denmark or Spain. Are they still hoping against hope?
IMO a Greek citizenship is too delicate a matter for the time
being!
I think that the kings haven´t lost hope of recovering their citizenship of Greece.
Only, if the "law Venicilenos" of 1994 would be to repealed, they could recover
AUTOMATICALLY their citizenship of Greece but if they are danish citizenship it would be very complicated to recover.