Who is the northwestern  neighbor of the country that boarders Iran on the northeast?
Iran Iran (Persian: ایران‎ ‎ "Irān " ] ), also known as Persia ( ), officially the Islamic Republic of Iran (Persian: جمهوری اسلامی ایران‎ ‎ "Jomhuri-ye Eslāmi-ye Irān " ), is a sovereign state in Western Asia. With over 79.92 million inhabitants (as of August 2017 ), Iran is the world's 18th-most-populous country. Comprising a land area of 1648195 km2 , it is the second-largest country in the Middle East and the 17th-largest in the world. Iran is bordered to the northwest by Armenia, the "de facto" independent Republic of Artsakh, the Republic of Azerbaijan, and the Azerbaijani exclave of Nakhchivan; to the north by the Caspian Sea; to the northeast by Turkmenistan; to the east by Afghanistan and Pakistan; to the south by the Persian Gulf and the Gulf of Oman; and to the west by Turkey and Iraq. The country's central location in Eurasia and Western Asia, and its proximity to the Strait of Hormuz, give it geostrategic importance. Tehran is the country's capital and largest city, as well as its leading economic and cultural center.
History of Mauritania (1978–91) This article is about the history of Mauritania from 1978 to 1991. Mauritania, officially the Islamic Republic of Mauritania, is an Arab Maghreb country in West Africa. It is bordered by the Atlantic Ocean in the west, by Western Sahara in the north, by Algeria in the northeast, by Mali in the east and southeast, and by Senegal in the southwest. It is named after the ancient Berber Kingdom of Mauretania, which later became a province of the Roman Empire, even though the modern Mauritania covers a territory far to the south of the old Berber kingdom that had no relation with it.