Citizenship of the United States
A person who is considered a citizen by more than one nation has "dual citizenship". It is possible for a United States citizen to have dual citizenship; this can be achieved in various ways, such as by birth in the United States to a parent who is a citizen of a foreign country (or in certain circumstances the foreign nationality may be transmitted even by a grandparent) by birth in another country to a parent(s) who is/are a United States citizen/s, or by having parents who are citizens of different countries. Anyone who becomes a naturalized U.S. citizen is required to renounce any prior "allegiance" to other countries during the naturalization ceremony; however, this renunciation of allegiance renunciation of citizenship to those countries.
Emirati diaspora
Emirati nationality law does not offer dual citizenship, hence those who become citizens of other countries have to give up their UAE nationality. The giving up of UAE citizenship is generally frowned upon in Emirati society. Government figures show that around 250 Emiratis became British citizens between 1990 and 2012, while a few others also gained American and Western citizenships over the years. Most such cases are typically of those who have been settled in their resident countries for long periods, or have married foreign spouses.