Illegal immigration is a major problem facing most developed countries in today's economy, and it has been a major political issue for American political parties (Republicans and Democrats) and over the years, each party has a different agenda for discussing the problem. Illegal immigration can be defined as movement of people from a country of origin to the destination country without any legal documentation and violates the immigration laws of the destination country. People have moved from one country to another over the years to escape a war situation or to get better facilities in another country. Countries have set immigration laws to prevent people from entering their territory without proper documentation, as the social and time constraints problems linked to illegal immigration affect areas such as social protection, healthcare health, voting rights, the economy and human rights. An illegal immigrant is a person who is not a national of a country of residence and who entered the country without any legal documents or who resides with expired documents. These illegal immigrants certainly pose a threat to the security of the country by entering illegally, but they also bring many benefits. America is a very good example of illegal immigration and shows how illegal immigration has been beneficial and detrimental to the country's economy, culture and society. Illegal immigration can occur for a variety of reasons, but one of the main causes over the years has been civil wars that pushed people across the border. borders of other countries. Poverty is another reason why people migrate legally or illegally from other countries for better paying jobs and better living conditions. One of the main examples of this is the thousands of people who apply for H-1B (highly skilled workers) each year to work legally. a company...... middle of paper ......s QuotedAnderson, Oliver C: “Illegal immigration: causes, methods and effects. » New York: Nova Science Publishers. 2010. E-book. , Database: Electronic Book Collection (EBSCOhost). April 2, 2014. Chong K. Yip and Palivos, Theodore. “Illegal immigration in a heterogeneous labor market. Journal of Economics » 101.1 (2010): 21-47. Print. April 2, 2014. Gerking, Shelby and Mutti, John H. “Costs and Benefits of Illegal Immigration: Key Questions for Government Policy.” 61.1 (June 1980): 71-85. Print. April 2, 2014. Haines, David W and Rosenblum, Karen E.: Illegal Immigration in America: A Reference Handbook. Westport, CT: Greenwood Press. 1999. Electronic book. , Database: Electronic Book Collection (EBSCOhost). April 2, 2014.Nadadur, Ramanujan. “Illegal Immigration: A Positive Economic Contribution to the United States.” Journal of Ethnic and Migration Studies 35.6 (2009): 1037-052. Print. April 2.2014.