Bahrain, also known as the Kingdom of Bahrain, is a constitutional monarchy located in the Persian Gulf. An archipelago, it consists of thirty three islands, the largest being Bahrain Island where the majority of the nation is located. Since 1987, Bahrain Island has been connected to Saudi Arabia, which lies to the west, by the thirty mile long King Fahd Causeway. In 1990, Bahrain became a member of the Gulf States Union and has been represented through this union in the LON.