Persian Gulf flooding of the basin started 15,000 years ago due to rising sea levels of the Holocene glacial retreat. This inland sea of some 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. In Iran this is called "Arvand Rood", where "Rood" means "river". Its length is , with Iran covering most of the northern coast and Saudi Arabia most of the southern coast. The Persian Gulf is about wide
Persian Gulf campaign of 1809 Bombay in January, having considered their mission to inflict significant damage on the Al Qasimi forces in the Persian Gulf to have been a success. The operation succeeded in its aim of reducing French influence in Oman and in dissuading the political forces in the region from encouraging attacks on British shipping, but it was unable to totally halt Al Qasimi activity in the Persian Gulf. By 1811, when much of the Royal Navy and HEIC forces in the Indian Ocean were diverted to Java, the Al Qasimi returned in force, although their destructive actions were weaker than before and