The geography of Iraq is diverse and falls into five main regions: the desert, Upper Mesopotamia, the northern highlands of Iraq, Lower Mesopotamia, and the alluvial plain extending from around Tikrit to the Persian Gulf.
The Tigris is the eastern of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Taurus in Turkey, then through the Syrian and Arabian Deserts, emptying into the Persian Gulf.
The Shatt al-Arab is a river of some 200 kilometres (120 mi) in length that is formed at the confluence of the Euphrates and Tigris rivers in the town of al-Qurnah in the Basra Governorate of southern Iraq. The southern end of the river constitutes the Iran–Iraq border down to its mouth, where it discharges into the Persian Gulf. The Shatt al-Arab varies in width from about 232 metres (761 ft) at Basra to 800 metres (2,600 ft) at its mouth. It is thought that the waterway formed relatively recently in geological time, with the Tigris and Euphrates originally emptying into the Persian Gulf via a channel further to the west. Kuwait's Bubiyan Island is part of the Shatt al-Arab delta.
The Tigris–Euphrates river system is a large river system in Western Asia that discharges into the Persian Gulf. Its principal rivers are the Tigris and Euphrates, along with smaller tributaries.
Wasit Governorate is a governorate in eastern Iraq, south-east of Baghdad and bordering Iran. Prior to 1976 it was known as Kut Province. Major cities include the capital Al-Kut, Al-Hai and Al-Suwaira. The governorate contains the Mesopotamian Marshes of Shuwayja, Al-Attariyah, and Hor Aldelmj. Its name comes from the Arabic word meaning "middle", as the former city of Wasit lay along the Tigris about midway between Baghdad and Basra. Wasit city was abandoned after the Tigris shifted course.
Dur-Sharrukin, present day Khorsabad, was the Assyrian capital in the time of Sargon II of Assyria. Khorsabad is a village in northern Iraq, 15 km northeast of Mosul. The great city was entirely built in the decade preceding 706 BC. After the unexpected death of Sargon in battle, the capital was shifted 20 km south to Nineveh.
West Qurna is one of Iraq's largest oil fields, located north of Rumaila field, 65 km northwest of Basra. West Qurna is believed to hold 43 billion barrels of recoverable reserves – making it one of the biggest oil fields in the world. Until 2009, the field was closed to Western firms.
The Karun is the Iranian river with the highest water flow, and the country's only navigable river. It is 950 km (590 mi) long. The Karun rises in the Zard Kuh mountains of the Bakhtiari district in the Zagros Range, receiving many tributaries, such as the Dez and the Kuhrang. It passes through the capital of the Khuzestan Province of Iran, the city of Ahvaz, before emptying to its mouth into Arvand Rud.
The Mesopotamian campaign or Mesopotamian front was a campaign in the Middle Eastern theatre of World War I fought between the Allies represented by the British Empire, troops from Britain, Australia and the vast majority from British Raj, against the Central Powers, mostly the Ottoman Empire. It started after British amphibious landings in 1914 which sought to protect Anglo-Persian oil fields in Khuzestan and the Shatt al-Arab. However, the front later evolved into a larger campaign that sought to capture the key city of Baghdad and divert Ottoman forces from other fronts. It ended with the Armistice of Mudros in 1918, leading to the cession of Iraq and further partition of the Ottoman Empire.
The Battle of Qurna, was between British forces and Ottoman forces that had retreated from Basra, which they lost at the Battle of Basra (1914) during the Mesopotamian campaign of World War I.
The Battle of the Marshes was a part of the Iran–Iraq War.
The Mesopotamian Marshes, also known as the Iraqi Marshes, are a wetland area located in Southern Iraq and southwestern Iran as well as partially in northern Kuwait. The marshes are primarily located on the floodplains of the Euphrates and Tigris rivers bound by the cities of Basra, Nasiriyah, Amarah and a portion of southwestern Iran and northern Kuwait. Historically the marshlands, mainly composed of the separate but adjacent Central, Hawizeh and Hammar Marshes, used to be the largest wetland ecosystem of Western Eurasia. The unique wetland landscape is home to the Marsh people, who have developed a unique culture tightly coupled to the landscape – harvesting reeds and rice, fishing and herding water buffalo.
Operation Badr was an Iranian operation conducted during the Iran–Iraq War against the forces of Ba'athist Iraq. The Iranians launched their offensive on March 11 and succeeded in capturing a part of the Basra-Amarah-Baghdad highway. The following Iraqi counterattack, however, forced the Iranians out in a continual war of endless stalemate.
Operation Kheibar was an Iranian offensive in the Iran–Iraq War. It was part of the Battle of the Marshes.
The Mesopotamian Marshes were drained in Iraq and to a smaller degree in Iran between the 1950s and 1990s to clear large areas of the marshes in the Tigris-Euphrates river system. The marshes formerly covered an area of around 20,000 km2 (7,700 sq mi). The main sub-marshes, the Hawizeh, Central, and Hammar marshes, were drained at different times for different reasons.
The Hammar Marshes are a large wetland complex in southeastern Iraq that are part of the Mesopotamian Marshes in the Tigris–Euphrates river system. Historically, the Hammar Marshes extended up to 4,500 km2 (1,700 sq mi) during seasonal floods. They were destroyed during the 1990s by large-scale drainage, dam and dike construction projects. Since 2003, they are recovering following reflooding and destruction of dams.
Iran–Iraq relations are the diplomatic and foreign relations between the two sovereign states of Iran and Iraq.
The Central or Qurna Marshes are a large complex of wetlands in Iraq that, along with the Hawizeh and Hammar marshes, make up the Mesopotamian Marshes of the Tigris–Euphrates river system. Formerly covering an area of around 3000 square kilometres, they were almost completely drained following the 1991 uprisings in Iraq and have in recent years been reflooded.
Al-Bubsairy is a village on the Shatt El Arab in Iraq, inhabited by Marsh Arabs. It is located at 30°53'48.5"N 47°32'16.9"E, south of Al Qurnah, and in Al-Qurna District.
The Battle of Nasiriyah was a battle in World War I that took place in the Mesopotamian city of Nasiriyah between British and Ottoman forces in July 1915. It was a pivotal battle in the Mesopotamian campaign of World War I and saw 5,000 British and Indian troops face off against a Turkish garrison of a similar number. British and Indian forces under the command of Lieutenant General Sir George Frederick Gorringe attacked Nasiriyah with the intention of protecting the British stronghold of Basra and destroying a major Turkish supply center in the region. British forces defeated the Turkish forces in Nasiriyah and it became the latest addition to a long string of successes against Ottoman forces in the campaign, coming right after the capture of Amara and the Battle of Qurna.
Iraq 
