Deportation is the expulsion of a person or group of people from a place or country. Today the expulsion of foreign nationals is usually called deportation, whereas the expulsion of nationals is called banishment, exile, or penal transportation. Deportation is an ancient practice, for example: Khosrau I, Sassanid King of Persia, deported 292,000 citizens, slaves, and conquered people to the new city of Ctesiphon in 542 C.E.
Individual or mass forcible transfers, as well as deportations of protected persons from occupied territory to the territory of the Occupying Power or to that of any other country, occupied or not, are prohibited, regardless of their motive. ... The Occupying Power shall not deport or transfer parts of its own civilian population into the territory it occupies.
All countries reserve the right to deport foreigners, even those who are longtime residents. In general, foreigners who have committed serious crimes, entered the country illegally, overstayed and/or broken the conditions of their visa, or otherwise lost their legal status to remain in the country may be administratively removed or deported.
In many cases, deportation is done by the government's executive apparatus, and as such is often subject to a simpler legal process (or none), with reduced or no right to trial, legal representation or appeal due to the subject's lack of citizenship. For example, in the 1930s, during the Great Depression, more stringent enforcement of immigration laws were ordered by the executive branch of the U.S. government, which led to the expulsion of up to 2 million Mexican nationals from the United States. In 1954, the executive branch of the U.S. government implemented Operation Wetback, a program created in response to public hysteria about immigration and immigrants from Mexico. Operation Wetback led to the deportation of nearly 1.3 million Mexicans from the United States.
Already in natural law of the 18th century, philosophers agreed that expulsion of a nation from the territory which it historically inhabits is not allowable. In the late 20th century, the United Nations drafted a code related to crimes against humanity; Article 18 of the Draft Code of Crimes Against the Peace and Security of Mankind declares "large scale" arbitrary or forcible deportation to be a crime against humanity.
Deportation often requires a specific process that must be validated by a court or senior government official. It should not be confused with administrative removal, which is the process of a country denying entry to an individual at a port of entry and expelling them.
Deportation can also happen within a state, when (for example) an individual or a group of people is forcibly resettled to a different part of the country. If ethnic groups are affected by this, it may also be referred to as population transfer. The rationale is often that these groups might assist the enemy in war or insurrection. For example, the American state of Georgia deported 400 female mill workers during the Civil War on the suspicion they were Northern sympathizers.
During World War II, Joseph Stalin (see Population transfer in the Soviet Union) ordered the deportation of Volga Germans, Chechens, Crimean Tatars, Ukrainians and others to areas away from the front, including central and western Soviet Union. Some historians have estimated the number of deaths from the deportation to be as high as 1 in 3 among some populations. On February 26, 2004 the European Parliament characterized deportations of the Chechens as an act of genocide.
The Soviet Union also used deportation, as well as instituting the Russian language as the only working language and other such tactics, to achieve Russification of its occupied territories (such as the Baltic nations and Bessarabia). In this way, it removed the historical ethnic populations and repopulated the areas with Russian nationals. The deported people were sent to remote, scarcely populated areas or to GULAG labour camps. It has been estimated that, in their entirety, internal forced migrations affected some 6 million people. Of these, some 1 to 1.5 million perished.
After World War II approximately 50,000 Hungarians were deported from South Slovakia by Czechoslovak authorities to the Czech borderlands in order to alter the ethnic composition of the region. Between 110,000 and 120,000 Japanese and Japanese Americans on the West Coast, as well as about 3,000 Italian American and about 11,500 German American families, were forcibly resettled from the coasts to internment camps in interior areas of the United States of America by President Franklin Roosevelt.
In the late 19th and early 20th century, deportation of union members and labor leaders was not uncommon in the United States during strikes or labor disputes. For an example, see the Bisbee Deportation.
Deporting individuals to a colony is a special case that is neither completely internal nor external. Such deportation has occurred in history. For example, Britain deported religious objectors and criminals to America in large numbers before 1776, and transported criminals to Australia between 1787 and 1855.
Deportation in the Holocaust
Nazi policies openly deported homosexuals, Jews, Poles, and Romani from their native places of residence to Nazi concentration camps or extermination camps set up at a considerable distance from their original residences. This was the policy known as the "Final Solution". The historical term "deportation", occurring frequently instead of the religious term Holocaust in various locations, thus means in effect "sent to their deaths" — as distinct from deportations in other times and places. 
Expulsion and the legality of collective expulsion
Expulsion is an act by a public authority to remove a person or persons against his or her will from the territory of that state. A successful expulsion of a person by a country is called a deportation.
According to the European Court of Human Rights, collective expulsion is any measure compelling non-nationals, as a group, to leave a country, except where such a measure is taken on the basis of a reasonable and objective examination of the particular case of each individual non-national of the group. Mass expulsion may also occur when members of an ethnic group are sent out of a state regardless of nationality. Collective expulsion, or expulsion en masse, is prohibited by several instruments of international law.
- Generally, definitions of deportation make no distinction between official and unofficial acts, and apply equally to nationals and foreigners. See: Henckaerts, Mass Expulsion in Modern International Law and Practice, 1995, p. 4-5.
- Some countries distinguish between deportation and penal transportation. For example, in the United States, "Strictly speaking, transportation, extradition, and deportation, although each has the effect of removing a person from the country, are different things, and have different purposes. Transportation is by way of punishment of one convicted of an offense against the laws of the country. Extradition is the surrender to another country of one accused of an offense against its laws, there to be tried, and, if found guilty, punished. Deportation is the removal of an alien out of the country, simply because his presence is deemed inconsistent with the public welfare and without any punishment being imposed or contemplated either under the laws of the country out of which he is sent or of those of the country to which he is taken." See: Fong Yue Ting v. United States, 149 U.S. 697, at 709 (1893).
- Christensen, The Decline of Iranshahr: Irrigation and Environments in the History of the Middle East, 500 B.C. to A.D. 1500, 1993.
- Convention (IV) relative to the Protection of Civilian Persons in Time of War. Geneva, 12 August 1949.Commentary on Part III : Status and treatment of protected persons #Section III : Occupied territories Art. 49 by the ICRC
- Henckaerts, Mass Expulsion in Modern International Law and Practice, 1995, p. 5; Forsythe and Lawson, Encyclopedia of Human Rights, 1996, p. 53-54.
- McKay, "The Federal Deportation Campaign in Texas: Mexican Deportation from the Lower Rio Grande Valley During the Great Depression", Borderlands Journal, Fall 1981; Balderrama and Rodriguez, Decade of Betrayal: Mexican Repatriation in the 1930s, 1995; Valenciana, "Unconstitutional Deportation of Mexican Americans During the 1930s: A Family History and Oral History", Multicultural Education, Spring 2006.
- See Albert G. Mata, "Operation Wetback: The Mass Deportation of Mexican Undocumented Workers in 1954 by Juan Ramon García", Contemporary Sociology, 1:5 (September 1983), p. 574 ("the widespread concern and hysteria about 'wetback inundation'..."); Bill Ong Hing, Defining America Through Immigration Policy, Temple University Press, 2004, p. 130. ISBN 1-59213-233-2 ("While Operation Wetback temporarily relieved national hysteria, criticism of the Bracero program mounted."); David G. Gutiérrez, Walls and Mirrors: Mexican Americans, Mexican Immigrants, and the Politics of Ethnicity, University of California Press, 1995, p. 168. ISBN 0-520-20219-8 ("The situation was further complicated by the government's active collusion in perpetuating the political powerlessness of ethnic Mexicans by condoning the use of Mexican labor while simultaneously whipping up anti-Mexican hysteria against wetbacks."); Ian F. Haney López, Racism on Trial: The Chicano Fight for Justice, new ed., Belknap Press, 2004, p. 83. ISBN 0-674-01629-7 ("...Operation Wetback revived Depression-era mass deportations. Responding to public hysteria about the "invasion" of the United States by "illegal aliens", this campaign targeted large Mexican communities such as East Los Angeles."); Jaime R. Aguila, "Book Reviews: Decade of Betrayal: Mexican Repatriation in the 1930s. By Francisco E. Balderrama and Raymond Rodríguez," Journal of San Diego History, 52:3-4 (Summer-Fall 2006), p. 197. ("Anti-immigrant hysteria contributed to the implementation of Operation Wetback in the mid 1950s...").
- García, Juan Ramon. Operation Wetback: The Mass Deportation of Mexican Undocumented Workers in 1954. Westport, Ct.: Greenwood Publishing Group, 1980. ISBN 0-313-21353-4
- Hing, Bill Ong. Defining America Through Immigration Policy. Philadelphia: Temple University Press, 2004. ISBN 1-59213-232-4
- See, e.g., Emerich de Vattel, The Law of Nations - Principles of the Law of Nature, Applied to the Conduct and Affairs of Nations and Sovereigns (translated from French), Philadelphia 1856 (Dublin 1792), Book II, § 90.
- International Law Commission, Yearbook of the International Law Commission 1996: Report of the Commission to the General Assembly on the Work of Its 48th Session, 2000.
- Fragomen and Bell, Immigration Fundamentals: A Guide to Law and Practice. New York: Practising Law Institute, 1996.
- Dillman, The Roswell Mills and A Civil War Tragedy: Excerpts from Days Gone by in Alpharetta and Roswell, Georgia, 1996; Hitt, Charged with Treason: The Ordeal of 400 Mill Workers During Military Operations in Roswell, Georgia, 1864-1865, 1992.
- In one estimate, based on a report by Lavrenti Beria to Joseph Stalin, 150,000 of 478,479 deported Ingush and Chechen people (or 31.3 percent) died within the first four years of the resettlement. See: Kleveman, Lutz. The New Great Game: Blood and Oil in Central Asia. Jackson, Tenn.: Atlantic Monthly Press, 2003. ISBN 0-87113-906-5. Another scholar puts the number of deaths at 22.7 percent: Extrapolating from NKVD records, 113,000 Ingush and Chechens died (3,000 before deportation, 10,000 during deportation, and 100,000 after resettlement) in the first three years of the resettlement out of 496,460 total deportees. See: Naimark, Norman M. Fires of Hatred: Ethnic Cleansing in Twentieth-Century Europe. Cambridge, Mass.: Harvard University Press, 2001. ISBN 0-674-00994-0. A third source says a quarter of the 650,000 deported Chechens, Ingush, Karachais and Kalmyks died within four years of resettlement. See: Mawdsley, Evan. The Stalin Years: The Soviet Union 1929-1953. Manchester, England: Manchester University Press, 2003. ISBN 0-7190-6377-9. However, estimates of the number of deportees sometimes varies widely. Two scholars estimated the number of Chechen and Ingush deportees at 700,000, which would halve the percentage estimates of deaths. See: Fischer, Ruth and Leggett, John C. Stalin and German Communism: A Study in the Origins of the State Party. Edison, N.J.: Transaction Publishers, 2006. ISBN 0-87855-822-5
- Conquest, Robert. The Nation Killers. New York: Macmillan, 1970. ISBN 0-333-10575-3
- Campana, Aurélie. "Case Study: The Massive Deportation of the Chechen People: How and why Chechens were Deported," Online Encyclopedia of Mass Violence. November 2007. Accessed August 11, 2008; Nurbiyev, Aslan. "Relocation of Chechen 'Genocide' Memorial Opens Wounds". Agence France Press. June 4, 2008; Jaimoukha, Amjad M. The Chechens: A Handbook. Florence, Ky.: Routledge, 2005. ISBN 0-415-32328-2.
- Pavel Polian. Against Their Will: The History and Geography of Forced Migrations in the USSR. Central European University Press, 2004. p. 4. ISBN 978-963-9241-68-8.
- Rosefielde, Steven (2009). Red Holocaust. Routledge. p. 83. ISBN 978-0-415-77757-5.
- Naimark, Norman M. Stalin's Genocides (Human Rights and Crimes against Humanity). Princeton University Press, 2010. p. 131. ISBN 0-691-14784-1
- Rosefielde, Steven (2009). Red Holocaust. Routledge. p. 84. ISBN 978-0-415-77757-5.
- J. Rieber, Alfred (2000). Forced Migration in Central and Eastern Europe, 1939-1950. Routledge. p. 90. ISBN 978-0-7146-5132-3.
- Smith & Hung 2010, p. 84 fn. 414.
- Iorizzo & Rossi 2010, p. 114.
- Tetsuden 2003, p. 124.
- Kennedy 1999, pp. 748-760.
- Deportation is the term commonly used to depict ejecting an individual from a political or legal jurisdiction. It has been used by the press, legal community, historians and sociologists. See, variously, "Lewis Attacks Deportation of Leaders by West Virginia Authorities", New York Times, July 17, 1921; "The Law of Necessity As Applied in the Bisbee Deportation Case", Arizona Law Review, 1961; Martin, The Corpse On Boomerang Road: Telluride's War on Labor, 1899-1908, 2004; Silverberg, "Citizens' Committees: Their Role in Industrial Conflict", Public Opinion Quarterly, March 1941; Suggs, Colorado's War on Militant Unionism: James H. Peabody and the Western Federation of Miners, 1991; Lindquist and Fraser, "A Sociological Interpretation of the Bisbee Deportation", Pacific Historical Review, November 1968. Deportation has also been used to describe these events by Presidential commissions; see President's Mediation Commission, Report on the Bisbee Deportations, 1918. The U.S. Supreme Court has also referred to forced internal removal as deportation; see United States v. Guest, 383 U.S. 745, (1966), Harlan, concurring in part and dissenting in part, at 766.
- Daniels, Coming to America: A History of Immigration and Ethnicity in American Life, 2002
- McCaffray and Melancon, p. 171.
- IOM 2011, p. 27.
- IOM 2011, p. 35.
- Aguila, Jaime R. "Book Reviews: Decade of Betrayal: Mexican Repatriation in the 1930s. By Francisco E. Balderrama and Raymond Rodríguez." Journal of San Diego History. 52:3-4 (Summer-Fall 2006).
- Balderrama, Francisco and Rodriguez, Raymond. Decade of Betrayal: Mexican Repatriation in the 1930s. Albuquerque: University of New Mexico Press, 1995. ISBN 0-8263-1575-5.
- Campana, Aurélie. "Case Study: The Massive Deportation of the Chechen People: How and why Chechens were Deported." Online Encyclopedia of Mass Violence. November 2007. Accessed August 11, 2008.
- Christensen, Peter. The Decline of Iranshahr: Irrigation and Environments in the History of the Middle East, 500 B.C. to A.D. 1500. Copenhagen, Denmark: Museum Tusculanum Press, 1993. ISBN 87-7289-259-5.
- Conquest, Robert. The Nation Killers. New York: Macmillan, 1970. ISBN 0-333-10575-3
- Daniels, Roger. Coming to America: A History of Immigration and Ethnicity in American Life. New York: HarperCollins, 2002. ISBN 0-06-050577-X
- Dillman, Caroline Matheny. The Roswell Mills and A Civil War Tragedy: Excerpts From Days Gone by in Alpharetta and Roswell, Georgia. Vol. 1. Roswell, Ga.: Chattahoochee Press, 1996. ISBN 0-9634253-0-7
- Fischer, Ruth and Leggett, John C. Stalin and German Communism: A Study in the Origins of the State Party. Edison, N.J.: Transaction Publishers, 2006. ISBN 0-87855-822-5
- Forsythe, David P. and Lawson, Edward. Encyclopedia of Human Rights. 2d ed. Florence, Ky.: Taylor & Francis, 1996.
- Fragomen, Austin T. and Bell, Steven C. Immigration Fundamentals: A Guide to Law and Practice. New York: Practising Law Institute, 1996. ISBN 0-87224-093-2
- García, Juan Ramon. Operation Wetback: The Mass Deportation of Mexican Undocumented Workers in 1954. Westport, Ct.: Greenwood Publishing Group, 1980. ISBN 0-313-21353-4.
- Gibney,Matthew J. and Hansen, Randall. "Deportation and the Liberal State: The Involuntary Return of Asylum Seekers and Unlawful Migrants in Canada, the UK, and Germany." New Issues in Refugee Research: Working Paper Series No. 77. Geneva, Switzerland: United Nations High Commissioner for Refugees, 2003.
- Grams, Grant W. Deportation from Saskatchewan during the Great Depression, the case of H.P. Janzen”, in John D. Thiesen (ed.), Mennonite Life, 2010.
- Grams, Grant W. “The Deportation of German Nationals from Canada, 1919 to 1939”, in Peter S. Li (ed.), Journal of International Migration and Integration, 2010.
- Grams, Grant W. “Immigration and Return Migration of German Nationals, Saskatchewan 1919 to 1939”, in Patrick Douand (ed.), Prairie Forum, 2008.
- Gutiérrez, David G. Walls and Mirrors: Mexican Americans, Mexican Immigrants, and the Politics of Ethnicity. Berkeley, Calif.: University of California Press, 1995. ISBN 0-520-20219-8
- Henckaerts, Jean-Marie (1995). Mass Expulsion in Modern International Law and Practice. The Hague: M. Nijhoff. ISBN 90-411-0072-5.
- Hing, Bill Ong. Defining America Through Immigration Policy. Philadelphia, Pa.: Temple University Press, 2004. ISBN 1-59213-233-2
- Hitt, Michael D. Charged with Treason: The Ordeal of 400 Mill Workers During Military Operations in Roswell, Georgia, 1864-1865. Monroe, N.Y.: Library Research Associates, 1992. ISBN 0-912526-55-6
- International Law Commission. United Nations. Yearbook of the International Law Commission 1996: Report of the Commission to the General Assembly on the Work of Its 48th Session. New York: United Nations Publications, 2000. ISBN 92-1-133600-7
- Iorizzo, Luciano J.; Rossi, Ernest E. (2010). Italian Americans: Bridges to Italy, Bonds to America. Youngstown, N.Y.: Teneo Press. ISBN 9781934844144.
- Jaimoukha, Amjad M. The Chechens: A Handbook. Florence, Ky.: Routledge, 2005. ISBN 0-415-32328-2
- Kennedy, David M. (1999). Freedom from Fear: The American People in Depression and War, 1929-1945. Cambridge, Mass.: Oxford University Press. ISBN 0195038347.
- Kleveman, Lutz. The New Great Game: Blood and Oil in Central Asia. Jackson, Tenn.: Atlantic Monthly Press, 2003. ISBN 0-87113-906-5
- "The Law of Necessity As Applied in the Bisbee Deportation Case." Arizona Law Review. 3:2 (1961).
- "Lewis Attacks Deportation of Leaders by West Virginia Authorities." New York Times. July 17, 1921.
- Lindquist, John H. and Fraser, James. "A Sociological Interpretation of the Bisbee Deportation." Pacific Historical Review. 37:4 (November 1968).
- López, Ian F. Haney. Racism on Trial: The Chicano Fight for Justice. New ed. Cambridge, Mass.: Belknap Press, 2004. ISBN 0-674-01629-7
- Martin, MaryJoy. The Corpse On Boomerang Road: Telluride's War on Labor, 1899-1908. Lake City, Colo.: Western Reflections Publishing Co., 2004. ISBN 1-932738-02-9
- Mata, Albert G. "Operation Wetback: The Mass Deportation of Mexican Undocumented Workers in 1954 by Juan Ramon García." Contemporary Sociology. 1:5 (September 1983)
- Mawdsley, Evan. The Stalin Years: The Soviet Union 1929-1953. Manchester, England: Manchester University Press, 2003. ISBN 0-7190-6377-9
- McCaffray, Susan Purves and Melancon, Michael S. Russia in the European Context, 1789-1914: A Member of the Family. New York: Palgrave Macmillan, 2005.
- McKay, Robert R. "The Federal Deportation Campaign in Texas: Mexican Deportation from the Lower Rio Grande Valley during the Great Depression." Borderlands Journal. (Fall 1981).
- Naimark, Norman M. Fires of Hatred: Ethnic Cleansing in Twentieth-Century Europe. Cambridge, Mass.: Harvard University Press, 2001. ISBN 0-674-00994-0
- Nurbiyev, Aslan. "Relocation of Chechen 'Genocide' Memorial Opens Wounds." Agence France Press. June 4, 2008.
- Perruchoud, Richard; Jillyanne Redpath-Cross, eds. (2011). Glossary on Migration. International Migration Law (Second ed.). Geneva: International Organisation for Migration. ISSN 1813-2278.
- President's Mediation Commission. Report on the Bisbee Deportations Made by the President's Mediation Commission to the President of the United States. Washington, D.C.: President's Mediation Commission, November 6, 1917.
- Silverberg, Louis G. "Citizens' Committees: Their Role in Industrial Conflict." Public Opinion Quarterly. 5:1 (March 1941).
- Smith, Cary Stacy; Hung, Li-Ching (2010). The Patriot Act: Issues and Controversies. Springfield, Ill.: C.C. Thomas Publisher. ISBN 9780398079123.
- Suggs, Jr., George G. Colorado's War on Militant Unionism: James H. Peabody and the Western Federation of Miners. 2nd ed. Norman, Okla.: University of Oklahoma Press, 1991. ISBN 0-8061-2396-6
- Tetsuden, Kashima (2003). Judgment Without Trial: Japanese American Imprisonment During World War II. Seattle: University of Washington Press. ISBN 0295982993.
- Valenciana, Christine. "Unconstitutional Deportation of Mexican Americans During the 1930s: A Family History and Oral History." Multicultural Education. Spring 2006.
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