Migrant integration in Europe is one of the hot topics on the continent, especially concerning Muslims. A number of Muslim immigrants in France arrived from Algeria in the second half of the 20th century due to the colonial relationship that lasted until 1962. In France, and the rest of Europe, its the cultural-religious differences between devout Muslims and the secular majority that gives sociologists and right-wing politicians a lot to write about.
As one of the interesting side effects of globalization, Algeria itself now seems to have some problems with non-Muslim immigrants. There are an estimated 35,000 Chinese who live in the country who seem to be unwilling or unable to assimilate to the cultural norms of their hosts.