As civilization underwent changes and development processes, the population of planet Earth increased. As a result, immigration is a logical process that has always had its place. Due to incomprehensibly different expectations for daily comfort caused by vast salary incongruities between countries, individuals have moved to more encouraging and created areas throughout history. The process of colonization of America was made possible by the development of new lands across the ocean. Moreover, the discovery of previously unknown territories was a sufficient reason for their settlement, including their prospects. It should be noted that state laws played a vital role in the colonization process. For example, the Naturalization Act of 1790 defined and regulated the parameters for settling previously unknown lands, notably mentioning which European countries had the right to do so. Subsequent laws only supplemented the initial law, as they determined the legal basis for entering the country and settling on land. In addition, the rules for family reconstitution, the birth procedure and the necessary planning of the number of people necessary for the gradual growth of colonies were defined. It was evident that the growing number of citizens increased the social and physical diversification of people. For example, a certain percentage of citizens did not meet employment requirements for health reasons. As a result, the Law on Reconciliation of Labor Opportunities was adopted, which made it possible to provide assistance to affected social groups. However, these legislative acts did not have sufficient practical translation, which is why immigrants gradually increased their presence in the country. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an Original Essay Alongside contributing variables, for example, cultural assimilation; An impressive percentage of immigrants come from developing countries in Africa and Asia, for which the American continent represents a new opportunity for success. An additional 11.3 million unlicensed workers accounted for 3.5% of the total population in 2014, and half (49%) were from Mexico. Thus, the history of health care will forever be linked to that of immigrants. The 1980s were a turning point for hundreds of thousands of Cubans on the island. It was noted that the country's embassy was attacked by citizens seeking refuge from strict rule and lack of development opportunities. Cuban anger ended when the government began actively encouraging citizens to leave the island. For example, the port of Mariel was opened as an additional transport route to the mainland. It should be noted that the government also benefited from the process, since the free access of Cubans to the movement allowed the release of local prisons and the number of criminals in general. As a result of this mass migration, 125,000 Cuban exiles appeared in Miami. Granting political refugee status to Cubans was reason enough to justify immigrants' legal residency in the United States. Thus, each of them had access to medical care. The flexibility of the U.S. health care system allows immigrants to receive care based on relocation documents. Americans have deeply isolated perspectives on migration. A December 2016 study found that only 58% of Americans favored empoweringmovements of talented specialists from different nations – while the same number of Americans currently supported the expulsion of foreigners. A similar number responds to President Trump's official request requiring a transitional restriction for guests from Middle Eastern and African countries. The current situation shows the difference of opinions among Americans. A third of citizens are satisfied with the existing provisions for immigrants, a quarter is in favor of improving the living conditions of immigrants from other countries and simplifying the system of entry into the country. However, 40% of Americans have a negative attitude toward an increase in migration flows that support a stricter legal basis for living in the country. The terrorist threat and the economic threat are sufficient reasons to strengthen migration rules. On the other hand, economic, social and legal instability can damage a country's reputation on the world stage and violate immigration laws. In the 20th century, there were several financial crises around the world: in the United States, Japan, Argentina. But none of them has led to a toughening of migration policy. Understanding this effect in various countries will help find appropriate responses to address the wide variety of medical problems that affect undocumented aliens. The priority task of the current government is to provide migrants with fundamental respect for their rights, social and medical protection, including health insurance and effective treatment. An immigrant is a person who is on the territory of the country without legal grounds. The development of the states of North America, namely the United States and Canada, defined these territories as full-fledged opportunities for citizens of other countries. A particularly important aspect of migration is professional employment. Citizens of developing countries are eager to travel to the United States and Canada to get a decent wage for their work. However, as previously stated, the lack of documentation to stay in the country makes it impossible to obtain adequate employment. There are several ways to enter the territory of these countries: cooperation with relatives and relatives who already live in this territory and can go through the procedure of inviting citizens of another state; political refugee status; illegal entry into the area. The legal status of a migrant is determined by the absence or delay of entry documents. A person may have an original document that allows entry into the country, but it was not extended and expired within the specified time frame. Additionally, a migrant may remain in the state using false documents and not have access to social services. Often, migrants enter the country illegally due to wars in their home territories, political and social instability, or other cultural, ethnic, and familial reasons. Higher levels of morbidity and mortality. The fact is that any way of entering or continuing to stay in the country makes it impossible to obtain medical care, which significantly complicates and deteriorates the quality of human life. The presence of insurance determines the safety of a person from unforeseen circumstances, damage or injury. Illegal residence in the United States does not entitle a migrant to coverage since the relevant state laws are applicable to citizens of the country or those who have legal grounds to enter and stay in the country. State reform is therefore necessary to enable migrants to benefit from medical care based on fundamental human rights. The presence of social insurance is in many ways.