Population transfer is the movement of a large group of people from one region to another by state policy or international authority, most frequently on the basis of ethnicity or religion.
Banishment or
exile is a similar process, but is forcibly applied to individuals and groups.Often the affected population is transferred by force to a distant region, perhaps not suited to their way of life, causing them substantial harm. In addition, the loss of all immovable property and, when forced, the loss of substantial amounts of movable property, is implied.Population exchange is the transfer of two populations in opposite directions at about the same time. Such exchanges have taken place several times in the 20th century, such as between
post-Ottoman Turkey and Greece, and during the partition of India and Pakistan.
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