Mexico Illegal Migration And Redefinition Of U.S National Interests (1965-1996)

National interests, as an important concept in international politics, has a dynamic nature, its connotation has been constantly developing and changing. In different stages of the United States history, it changed with the various times and the various needs.National interests of the United States have been to accelerate the development of the social economy though adopting the liberal immigration policies before 1996. But, since millions of Mexican illegal immigrants had entered the United States, they brought many serious problems, such as population problems, economic problems, political problems, security problems, cultural problems and living problems. These problems had become the strikes to the original policies, so there was the new climax wave of Exclusionism. The government claimed that they should protect the national interests. As the result, the new elements added to the definition of the national interests. Under this situation, it was natural to adopt the severe immigrant policies.