Abu Dhabi is the largest of the seven emirates that comprises the United Arab Emirates and was also the largest of the former Trucial States. Abu Dhabi is also a city of the same name within the Emirate that is the capital of the country, in north central UAE. The city lies on a T-shaped island jutting into the Persian Gulf from the central western coast. An estimated 1,000,000 lived there in 2000, with about an 80% expatriate population