Basra is a city in southern Iraq located on the Shatt al-Arab. It had an estimated population of 1.4 million in 2018. Basra is also Iraq's main port, although it does not have deep water access, which is handled at the port of Umm Qasr. However, there is ongoing construction of Grand Faw Port on the coast of Basra, which is considered a national project for Iraq and will become one of the largest ports in the world and the largest in the Middle East, in addition, the port will strengthen Iraq's geopolitical position in the region and the world. Furthermore, Iraq is planning to establish a large naval base in the Faw peninsula.

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.