Persian Gulf

Persian Gulf


Physical Geography



The Persian Gulf was an important transportation route in antiquity but declined with the fall of Mesopotamia. In succeeding centuries control of the region was contested by Arabs, Persians, Turks, and Western Europeans. In 1853, Britain and the Arab sheikhdoms of the Persian Gulf signed the Perpetual Maritime Truce, formalizing the temporary truces of 1820 and 1835. The sheikhs agreed to stop harassing British shipping in the Arabian Sea and to recognize Britain as the dominant power in the gulf. These sheikhdoms thus became known as the Trucial States. An international agreement among the major powers in 1907 placed the gulf in the British sphere of influence.

Although oil was discovered in the gulf in 1908, it was not until the 1930s, when major finds were made, that keen international interest in the region revived. Since World War II the gulf oil fields, among the most productive in the world, have been extensively developed, and modern port facilities have been constructed. Nearly 50% of the world's total oil reserves are estimated to be found in the Persian Gulf. It is also a large fishing source and was once the chief center of the pearling industry. In the late 1960s, following British military withdrawal from the area, the United States and the USSR sought to fill the vacuum. In 1971 the first U.S. military installation in the gulf was established at Bahrain.

The long-standing Arab-Persian conflict in the gulf, combined with the desire of neighboring states for control of large oil reserves, has led to international boundary disputes. Iraq and Iran argued over navigation rights on the Shatt al Arab, through which Iran's main ports and most productive oil fields are reached. Iran and the sheikhdom of Ras al-Khaima contested ownership of the oil-rich islands of Abu Musa and Greater and Lesser Tunb at the entrance to the gulf. Iranian forces occupied these islands in Dec., 1971, infuriating Iraq. The much-contested rights over the Shatt al Arab led Iran and Iraq into an 8-year war in the 1980s (see Iran-Iraq War). In 1984 American and other foreign oil tankers in the gulf were attacked by both Iran and Iraq. The security of Persian Gulf countries was threatened throughout this war.

When Iraq invaded Kuwait in Aug., 1990, the Persian Gulf was once again a background for conflict. International coalition ground forces were stationed in Saudi Arabia and neighboring gulf countries in the Persian Gulf War (1991). Before Iraq was expelled from Kuwait in Feb., 1991, Iraqi soldiers set fire to over 500 Kuwaiti oil wells and dumped millions of barrels of oil into the Persian Gulf, causing an environmental crisis and threatening desalination plants throughout the area. The area again was the scene of warfare in 2003 when U.S. and British forces invaded Iraq. The Persian Gulf's vast oil reserves make the area a continuing source of international tension.

or Gulf War

(1990–91) International conflict triggered by Iraq's invasion of Kuwait in August 1990. Though justified by Iraqi leader Ssubdotaddām Hsubdotussein on grounds that Kuwait was historically part of Iraq, the invasion was presumed to be motivated by Iraq's desire to acquire Kuwait's rich oil fields and expand its power in the region. The United States, fearing Iraq's broader strategic intentions and acting under UN auspices, eventually formed a broad coalition, which included a number of Arab countries, and began massing troops in northern Saudi Arabia. When Iraq ignored a UN Security Council deadline for it to withdraw from Kuwait, the coalition began a large-scale air offensive (Jan. 16–17, 1991). Ssubdotaddām responded by launching ballistic missiles against neighbouring coalition states as well as Israel. A ground offensive by the coalition (February 24–28) quickly achieved victory. Estimates of Iraqi military deaths range up to 100,000; coalition forces lost about 300 troops. The war also caused extensive damage to the region's environment. The Iraqi regime subsequently faced widespread popular uprisings, which it brutally suppressed. A UN trade embargo remained in effect after the end of the conflict, pending Iraq's compliance with the terms of the armistice. The foremost term was that Iraq destroy its nuclear, biological, and chemical weapons programs. The embargo continued into the 21st century and ceased only after the Iraq War started in 2003.

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Arm of the Arabian Sea. It is about 615 mi (990 km) long and rarely exceeds a depth of 300 ft (90 m). It is connected with the Gulf of Oman and the Arabian Sea through the Strait of Hormuz. It contains the island kingdom of Bahrain and is bordered by Iran, the United Arab Emirates, Oman, Saudi Arabia, Qatar, Kuwait, and Iraq. It has long been a maritime trade route between the Middle East and South Asia; its modern economy is dominated by petroleum production.

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The Persian Gulf, in the Southwest Asian region, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula. Historically and commonly known as the Persian Gulf, this body of water is sometimes controversially referred to as the Arabian Gulf by certain Arab countries or simply The Gulf, although neither of the latter two terms are recognized internationally.

The Persian Gulf was a focus of the 1980-88 Iraq-Iran War, in which each side attacked the other's oil tankers. In 1991, the Persian Gulf again was the background for what was called the Persian Gulf War or the "Gulf War" when Iraq invaded Kuwait and was subsequently pushed back, despite the fact that this conflict was primarily a land conflict.

The Persian Gulf is rich with good fishing grounds, extensive coral reefs, and abundant pearl oysters, but its ecology has come under pressure from industrialisation, and in particular, repeated petroleum spillages during recent wars.


This inland sea of some 251,000 km² is connected to the Gulf of Oman in the east by the Strait of Hormuz; and its western end is marked by the major river delta of the Shatt al-Arab, which carries the waters of the Euphrates and the Tigris. Its length is 989 kilometres, with Iran occupying most of the northern coast and Saudi Arabia most of the southern coast. The gulf is about 56 kilometres wide at its narrowest, in the Strait of Hormuz. The waters are overall very shallow, with a maximum depth of 90 metres and an average depth of 50 metres.


Oil and gas

The Persian Gulf and its coastal areas are the world's largest single source of crude oil and related industries dominate the region. Al-Safaniya, the world's largest offshore oilfield, is located in the Persian gulf. Large gas finds have also been made with Qatar and Iran sharing a giant field across the territorial median line (North Field in the Qatari sector; South Pars Field in the Iranian sector). Using this gas, Qatar has built up a substantial liquified natural gas (LNG) and petrochemical industry.

The oil-rich countries (excluding Iraq) that have a coastline on the Persian Gulf are referred to as the Persian Gulf States. Iraq's egress to the gulf is narrow and easily blockaded consisting of the marshy river delta of the Shatt al-Arab, which carries the waters of the Euphrates and the Tigris Rivers, where the left (East) bank is held by Iran.





No written deed has remained since the era before the Persian Empire, but in the oral history and culture, the Iranians have called the southern waters: "Jam Sea", "Iran Sea", "Pars Sea".

During the years: 550 to 330 B.C. coinciding with sovereignty of the first Persian Empire on the Middle East area, especially the whole part of Persian Gulf and some parts of the Arabian Peninsula, the name of "Pars Sea" has been widely written in the compiled texts.

In the travel account of Pythagoras, several chapters are related to description of his travels accompanied by Darius the Great, to Susa and Persepolis, and the area is described. From among the writings of others in the same period, there is the inscription and engraving of Darius the great, installed at junction of waters of Arabian Gulf (Ahmar Sea = Red sea) and Nile river and Rome river (current Mediterranean) which belongs to the 5th century BC where, Darius, the king of Achaemenid Empire has named the Persian Gulf Water Channel: Pars Sea.

Naming dispute

With the rise of Arab nationalism (Pan-Arabism) in the 1960s, some Arab states of the region started adopting the term "Arabian Gulf" (in Arabic: الخلیج العربي al-khalīj al-ʿarabī) to refer to the waterway. However, this naming has not found much acceptance outside of the Arab world, and is not recognized by the United Nations or any other international organization. The United Nations Secretariat on many occasions has requested that only "Persian Gulf" be used as the official and standard geographical designation for the body of water. Historically, "Arabian Gulf" has been a term used to indicate the Red Sea. At the same time, the historical veracity of the usage of "Persian Gulf" can be established from the works of many medieval historians.

At the Twenty-third session of the United Nations in March-April 2006, the name "Persian Gulf" was confirmed again as the legitimate and official term to be used by members of the United Nations.


Pre-Islamic era

For most of the history of human settlement in the Persian Gulf the southern side was ruled by nomadic tribes. During the end of fourth millennium BC the southern part of the Persian Gulf was dominated by the Dilmun civilization. For a long time the most important settlement on the southern coast of the Persian Gulf was Gerrha. In the second century the Lakhum tribe, who lived in Yemen, migrated north and founded the Lakhmid Kingdom along the southern coast. During the 7th century the Sassanid Empire conquered the whole of the Persian Gulf.

Between 625 BC BC and 226 AD the northern side was dominated by the Median, Achaemenid, Seleucid and Parthian empire]]s. After the fall of the Parthian Empire, the Sassanid empire ruled the northern half and at times the southern half of the persian gulf. the Persian Gulf, along with the Silk Road was very important to trade in the Sassanid empire. Siraf was a ancient Sassanid port that was located on the north shore of the Persian Gulf in what is now the Iranian province of Bushehr.

Colonial era

Portuguese expansion into the Indian Ocean in the early sixteenth century following Vasco da Gama's voyages of exploration saw them battle the Ottomans up the coast of the Persian Gulf. In 1521, a Portuguese force led by commander Antonio Correia invaded Bahrain to take control of the wealth created by its pearl industry. In 1602, Shāh ‘Abbās expelled the Portuguese from Bahrain. With the support of the British fleet, in 1622 'Abbās took the island of Hormuz from the Portuguese: much of the trade was diverted to the town of Bandar 'Abbās which he had taken from the Portuguese in 1615 and had named after himself. The Persian Gulf was therefore opened to a flourishing commerce with Portuguese, Dutch, French, Spanish and British merchants, which were granted particular privileges.

From 1763 until 1971, the British Empire maintained varying degrees of political control over some Persian Gulf states, including the United Arab Emirates (originally called the "Trucial Coast States") and at various times Bahrain, Kuwait, Oman, and Qatar through the British Residency of the Persian Gulf.

The United Kingdom maintains a high profile in the region; in 2006, over 1 million Britons visited Dubai alone.


Mangroves in the Persian Gulf, which are thought to require tidal flow and a combination of fresh and salt water, are nurseries for crabs, small fish and insects - and the birds that eat them.

See also


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