Algeria, officially the People’s Democratic Republic of Algeria, also formally referred to as the Democratic and Popular Republic of Algeria, is a country in the Maghreb region of Northwest Africa with Algiers as its capital. Algeria is a member of the African Union, the Arab League, OPEC and the United Nations. The country is also a founding member of the Arab Maghreb Union.
Algeria is the largest country in Africa, the Arab World and of the countries bordering the Mediterranean Sea; it is also the tenth-largest country in the world. The country is bordered in the northeast by Tunisia, in the east by Libya, in the west by Morocco, in the southwest by Western Sahara, Mauritania, and Mali, in the southeast by Niger, and in the north by the Mediterranean Sea. Its size is almost 2,400,000 square kilometres with an estimated population of 37 million.