Final answer:
Expulsion is the process of forcing a subordinate group to leave a region or country, often on an ethnic or racial basis, and it can contribute to genocide as seen in historical examples such as Executive Order 9066 in the United States and the Holocaust.
Step-by-step explanation:
The process of removing an entire nationality from a particular area is known as expulsion. This term addresses a situation where a subordinate group is compelled to leave a region or a country, typically by a dominant power. Expulsion can be a part of a more extensive process, such as genocide, which involves the deliberate attempt to destroy a particular ethnic, religious, or national group.
Historically, expulsion has been executed on an ethnic or racial basis and includes various methods and consequences. For instance, Executive Order 9066 in the United States during World War II authorized the establishment of internment camps for Japanese American citizens, leading to the forced relocation and internment of over 120,000 individuals.
Strong forces can also enact ethnic cleansing to force a population out of their homeland, potentially leading to grave humanitarian crises, such as mass migration and severe population displacements. In extreme cases, such as the Holocaust or the mass killings of Indigenous peoples, expulsion has contributed to genocide.