Upper Mesopotamia Upper Mesopotamia Upper Mesopotamia is the name used for the uplands and great outwash plain of northwestern Iraq, northeastern Syria and southeastern Turkey, in the northern Middle East. After the Arab Islamic conquest of the mid-7th century AD the region has been known by the traditional Arabic name of al-Jazira ( "the island"), also transliterated "Djazirah", "Djezirah", "Jazirah" & the Syriac (Aramaic) variant "Gāzartā" or "Gozarto" (). The Euphrates and Tigris rivers transform Mesopotamia into almost an island, as they are joined together at the Shatt al-Arab in the Basra Governorate of Iraq, and their sources in eastern Turkey are
Mesopotamia, Greece Mesopotamia, Greece Mesopotamia (Greek: Μεσοποταμία), Bulgarian and Macedonian Slavic: , is a village and a former municipality in Kastoria regional unit, West Macedonia, Greece. Since the 2011 local government reform it is part of the municipality Kastoria, of which it is a municipal unit. The municipal unit has an area of 99.173 km. Population 4,224 (2011). The municipality was formed at the 1997 Kapodistrias reform under the name "Aliakmonas", after the river Aliakmonas. It was renamed to "Mesopotamia" in 2006. The town of Mesopotamia was the seat of the municipality. Mesopotamia has three Byzantine style churches. The most recent and