Multiple citizenship is simultaneous citizenship in two or more countries (whether or not it is recognized by all countries). Dual citizenship (being a citizen of two nations) is by far the most common type of multiple citizenship, but nothing in international law prevents individuals from establishing citizenship in more than two countries. Some countries prohibits their citizens from establishing citizenship in another country or only permit it in certain circumstances or for certain countries. Other counties place no restrictions upon citizens wishing to become citizens of other lands.
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