Some of these issues may be better understood by looking at the practices elsewhere, especially in Europe. Who is regarded as a citizen and the rights of such citizenship are determined by each country, which sets its own criteria for citizenship. A person concurrently regarded as a citizen of more than one state under the laws of these states is one who has multiple citizenship, also known as dual citizenship or multiple nationality.
National laws may include criteria as to specific circumstances in which someone may concurrently hold another citizenship. A country may withdraw its own citizenship, if a person acquires the citizenship of another country. (Read more: Estonian Life No. 34 2016)
Laas Leivat