Mauritania, officially the Islamic Republic of Mauritania, is a country in Northwest Africa. It is the eleventh largest sovereign state in Africa and is bordered by the Atlantic Ocean to the west, Western Sahara to the north and northwest, Algeria to the northeast, Mali to the east and southeast, and Senegal to the southwest.

The country derives its name from the ancient Berber kingdom of Mauretania, which existed from the 3rd century BCE into the 7th century CE in the far north of modern-day Morocco and Algeria. Approximately 90% of Mauritania's land is within the Sahara; consequently, the population is concentrated in the south, where precipitation is slightly higher.

The capital and largest city is Nouakchott, located on the Atlantic coast, which is home to around one-third of the country's 4.4 million people.

Nouakchott was a mid size village of little importance until 1958, when it was chosen as the capital of the nascent nation of Mauritania. It was designed and built to accommodate 15,000 people, but drought and increasing desertification since the 1970s have displaced a vast number of Mauritanians who resettled in Nouakchott. This caused massive urban growth and overcrowding, with the city having an official population of just under a million as of 2013.

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