Umm Qasr (Arabic: أم قصر, also transliterated as : Um-qasir, Um-qasser), is a port city in southern Iraq. It stands on the canalised Khawr az-Zubayr, part of the Khawr Abd Allah estuary which leads to the Persian Gulf. It is separated from the border of Kuwait by a small inlet. A bridge across the waterway linked the port with Kuwait prior to the 1991 Persian Gulf War.