Armenia in 1988 as a result of deportation policy of Armenia against ethnic Azerbaijanis. The International Refugee Organization (IRO) was founded on 20 April 1946, and took over the functions of the United Nations Relief and Rehabilitation Administration, which was shut down in 1947. While the handover was originally planned to take place at the beginning of 1947, it did not occur until July 1947. The International Refugee Organization was a temporary organization of the United Nations (UN), which itself had been founded in 1945, with a mandate to largely finish the UNRRA's work of repatriating or resettling European refugees. It was dissolved in 1952 after resettling about one million refugees. The definition of a refugee at this time was an individual with either a Nansen passport or a "certificate of identity" issued by the International Refugee Organization. The Constitution of the International Refugee Organization, adopted by the United Nations General Assembly on 15 December 1946, specified the agency's field of operations. Controversially, this defined "persons of German ethnic origin" who had been expelled, or were to be expelled from their countries of birth into the postwar Germany, as individuals who would "not be the concern of the Organization." This excluded from its purview a group that exceeded in number all the other European displaced persons put together. Also, because of disagreements between the Western allies and the Soviet Union, the IRO only worked in areas controlled by Western armies of occupation. Refugee studies With the occurrence of major instances of diaspora and forced migration, the study of their causes and implications has emerged as a legitimate interdisciplinary area of research, and began to rise by mid to late 20th century, after World War II. Although significant contributions had been made before, the latter half of the 20th century saw the establishment of institutions dedicated to the study of refugees, such as the Association for the Study of the World Refugee Problem, which was closely followed by the founding of the United Nations High Commissioner for Refugees. In particular, the 1981 volume of the International Migration Review defined refugee studies as "a comprehensive, historical, interdisciplinary and comparative perspective which focuses on the consistencies and patterns in the refugee experience." Following its publishing, the field saw a rapid increase in academic interest and scholarly inquiry, which has continued to the present. Most notably in 1988, the Journal of Refugee Studies was