United Arab Emirates (UAE), federation of seven independent states lying along the east-central coast of the Arabian Peninsula, formerly called the Trucial States (from the Perpetual Maritime Truce signed with Great Britain in 1853), and constituting, with Bahrain, Kuwait, and Qatar, the Persian Gulf States. The states making up the UAE are: Abu Dhabi, 'Ajmân, Dubai, Al Fujayrah, Ra's al Khaymah, Sharjah (or Ash Shâriqah), and Umm al-Qaiwain. The states, occupying a vaguely defined area formerly known as the Pirate Coast, as well as 80 km (50 mi) of coast on the Gulf of Oman, are bordered on the north by Qatar and the Persian Gulf, on the east by the Gulf of Oman, and on the south and west by Saudi Arabia. The area of the UAE is 77,700 sq km (30,000 sq mi).