My two daughters were born at RAFH Wegberg near JHQ Rheindahlen. Although the service authority issued British birth certificates we were advised to have the births registered at the British Consulate. This was especially important in the case of a male child who, despite having a British birth certificate, could be liable for conscription in the German Armed Forces because they were born in Germany and this made them liable for this in German eyes. We registered the births at Dusseldorf and there have been no subsequent questioning of their nationality or British citizenship. So if the birth has been registered at the Consulate, Embassy or High Commission, there would not appear to be an issue. During the registration process my wife who was born in Guernsey during the German Occupation had her passport that had been issued in Guernsey endorsed that she was a British citizen with right of abode in the UK. Hope this clarifies matters and allays any fears.