Migration of the Labour Power, International, movement, resettlement of the able-bodied population from one country to another in search of work and better 224 living conditions, characteristic of capitallism, especially in the imperialist epoch. The main reason of this migration is the unevenness of the accumulation of capital in certain capitalist countries, which leads to relative surplus population in some countries and the lack of a workforce in others. Under capitalism this process is spontaneous and usually proceeds from the less developed to the more developed countries with a relatively high economic growth rate. Historically, the workforce resettled en masse from Europe to North America, where turbulently developing industrial capitalism required many workers, while the local population was limited. The influx of immigrants is one of the reasons for the relatively rapid capitalist development of the United States. The growing unemployment in the capitalist world against the background of the general crisis of capitalism forced all capitalist countries to resort to restrictions and in several instances to banning foreign workers from entering the country. However, after World War II, because of the features of economic development, certain West European countries, especially the FRG and France, were interested in attracting non-qualified workforce from other lands. Restrictions were dropped within the Common Market framework. At the beginning of the 1970s nearly 11 million foreign workers were employed in the European Economic Community as a result of migration within the Community and the influx of immigrants from less developed South European countries (Spain, Portugal and Greece). Foreign workers are the most exploited sector of the working class. Most do not belong to trade unions, labour legislation does not extend to them, they are not employed in qualified work, they earn less for their labour than local workers and they live in worse conditions. "The exploitation of worse paid labour from backward countries is particularly characteristic of imperialism. On this exploitation rests, to a certain degree, the parasitism of rich imperialist countries which bribe a part of their workers with higher wages while shamelessly and unrestrainedly exploiting the labour of ‘cheap’ foreign workers" (V. I. Lenin, Collected Works, Vol. 26, p. 168). The scientific and technological revolution has resulted in the international migration of people in the sciences and professions known as brain drain. Scientists, engineers, doctors and other highly qualified workers have moved from Western Europe to the United States in search of better conditions to use their expertise and higher living standards, thus allowing the American monopolies to save money on personnel training. This brain drain considerably damaged the economy of West European countries.