Diasporas and migration crisis

Lots of people leave their country and go away, but why?
Imperial diaspora is migrants who go to another land that has been conquered by their own nation and enjoy higher status on account of their national ties to the ruling power.
Many of the people are moving to lands who have been conquered by the empire to have better lives working for the empire.
The Hungarian imperial diaspora, happened because of the border changes of the post in world war 1, the victorious forces redrew the borders of Hungary so that it runs through Hungarians majority areas. As consequences 3.3 million Hungarians found themselves outside the new borders and not anymore in Hungarian territory. The distribution of Hungarians are mostly in Slovakia, Serbia, Romania and in Ukraine.
The Russian imperial diaspora, took place at the beginning of the 1990s, Russia had experienced one of the most dramatic periods in its history, as a result losing the former administrative Russian Republic of the Soviet Union who became a separate sovereign state. Israel and Germany received the largest shares of Russian speaking immigrants, because of incentives provided by the governments of both countries.
There are different types of diasporas however a imperial diaspora is when people leave their country and go to another land which has been conquered by their own nation. The verb form of diaspora is diaspeiro. In each instance, diaspeiro relates to the scattering of the Christians of Hellenistic Jewish origin (Greek-speaking Jewish Christians from the diaspora) in areas where there was a non-Jewish majority, but also in the area around Jerusalem and toward Samaria. The unique contribution of these verses in the use of diaspeiro is that those who were scattered served essential factors in the expansion of early Christianity or to missions.