Persian Gulf naming dispute region, who did not use the term "Persian Gulf". In 2011 President Mahmoud Ahmadinejad made a speech to the United Nations General Assembly during which he said that the only correct name of the sea between Iran and the Arabian peninsula was the Persian Gulf, and he dismissed the use of any other names as illegitimate and void. Iran designates 30 April as National Persian Gulf Day. The date coincides with the anniversary of Abbas I of Persia's successful military campaign when the Portuguese navy was driven out of the Strait of Hormuz in the Capture of Ormuz (1622). The
Persian Gulf fishing grounds, extensive reefs (mostly rocky, but also coral), and abundant pearl oysters, but its ecology has been damaged by industrialization and oil spills. The body of water is historically and internationally known as the "Persian Gulf". Some Arab governments refer to it as the "Arabian Gulf" () or "The Gulf", but neither term is recognized internationally. The name "Gulf of Iran (Persian Gulf)" is used by the International Hydrographic Organization. The Persian Gulf resides in the Persian Gulf Basin, which is of Cenozoic origin and related to the subduction of the Arabian Plate under the Zagros Mountains. The current