Historically, international migratory movements has covered short-termimbalances in the demographic and economic situation of different countries.

Focusing attention on the present and near future of Europe,

it is not risky to launch a categorical and simple prediction; "Europe will urgently need immigrants."

In this case, such need does not derive from economic motives, sustained by an expansion of its production, but merely by demographic reasons. It isclear that in a context of demographic decline, of population losses, to maintain the same level of production there are only two alternatives.

The first would be to drastically increase productivity levels, the second to meet the needs of the population by opening the doors to greater volumes of immigrants.

This issue, which little is said about if we consider its seriousness, will not impact the pension and health systems in too many years, since their livelihood requires a sufficient proportion of active workers / retired workers, which naturally will not be achieved.

In addition, assuming an opening of the external borders, a great training and integration challenge will be posed, since the European economy, unlike the Asian one, has not focused its orientation on low-profile activities, but rather requires qualified and correctly trained workers. The international mobility of workers must assume an adaptation of the profiles of the professionals to the standards of work in the receiving markets.

In 2017, the growth of the European population was imputed solely to the effect of immigration, since in the face of equalization of births and deaths, it was 1.5 million non-EU immigrants who sustained population growth.

In 13 of the 28 member states the number of deaths exceeded that of births.

In Germany and Italy, two major European powers, if immigrant entries were not consolidated, their population would fall by 2050 by 18% and 16% respectively.

Germany surpassed Japan by having the lowest average birth rate in the world in the last five years.

This situation is more serious if possible in several countries of the East, because after the process of disintegration of the Soviet Union and subsequent incorporation into the EU, therewere massive departures of citizens to Western European countries. In Latvia, for example, itscurrent 2 million inhabitants will remain at 1.5 million if sufficient immigrant flows are not consolidated.

The challenge of integration and management of theseflows is not small, but the challenges arising from maintaining production in Europe and with its international weight, the services associated with the Welfare State and ultimately maintaining the population, are not minor.

Therefore, the old continent needs a leisurely reflection on its immigration policy, since we are not talking about external solidarity but of internal necessity.

The anticipation of the problem will help to workit in advance, since as integration, education and the adaptation of profiles have been exposed, these are aspects of vital importance in this process.