What are Algeria Tunisia and Morocco are collectively called?

The Region of Africa north of the Sahara and west of the Nile that includes the the Atlas Mountains, and the coastal plains of Tunisia, Morocco, Algeria and Libya, these countries situated entirely in the northwestern part of the African Continent are collectively known as Al-Maghreb in Arabian being their main language, and the Maghreb in English, and Le Maghreb in French being secondary languages used most in this region.

In 1989 after the formation of the "Arab Maghreb Union" two more regions i.e. the disputed territories of Western Sahara mostly under Moroccan rule and Mauritania were included in this Maghreb-banner, the residents of these countries are known as the Maghrebis or Moors (a name given to the inhabitants of the western Islamic World by Christians that extend from Spain to Tunisia sharing a common homogeneous culture).