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.
Geography of Tunisia Tunisia is a country in Northern Africa, bordering the Mediterranean Sea, having a western border with Algeria (965 km) and south-eastern border with Libya (459 km) where the width of land tapers to the south-west into the Sahara. The country has north, east and complex east-to-north coasts including the curved Gulf of Gabès, which forms the western part of Africa's Gulf of Sidra. Most of this greater gulf forms the main coast of Libya including the city of Sirte which shares its root name. The country's geographic coordinates are . Tunisia occupies an area of 163,610 square kilometres, of which 8,250 are water. The principal and reliable rivers rise in the north of the country with a few notable exceptions from north-east Algeria and flow through the northern plain where sufficient rainfall supports diverse plant cover and irrigated agriculture.