Deportation is the expulsion of a person or group of people from a place or country. The term expulsion is often used as a synonym for deportation, though expulsion is more often used in the context of international law, while deportation is more used in national (municipal) law. Forced displacement or forced migration of an individual or a group may be caused by deportation, for example ethnic cleansing, and other reasons. A person who has been deported or is under sentence of deportation is called a deportee.