The Caspian Sea is the largest enclosed body of water on Earth and is located between Europe and Asia. It is bordered by five countries: Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan. The Caspian Sea is an important region for shipping and transportation, and is home to several important ports and shipping lanes.
The Caspian Sea is connected to the Black Sea through the Volga-Don Canal, which is used by a large number of commercial vessels. The Caspian Sea also has several important ports, including the ports of Atyrau and Aktau in Kazakhstan, and the port of Bandar Anzali in Iran. These ports handle a wide variety of cargo, including oil, natural gas, and manufactured goods.
The Caspian Sea is also an important region for oil and natural gas exploration and transportation. The region has significant reserves of both resources, and there are several pipelines and infrastructure projects in development, such as the Trans-Caspian Gas Pipeline, which will transport natural gas from Turkmenistan to Europe through the Caspian Sea.
The Caspian Sea is also home to several naval bases, including the Russian naval base at Makhachkala and the Iranian naval base at Anzali.