Bani Yas (Arabic: بَنُو ياس) is a tribal confederation of Najdi origin[1] in the modern United Arab Emirates.[2] The tribal coalition, consisting of tribes from Dubai to Khor Al Adaid in southeast Qatar, was called the Bani Yas Coalition (Arabic: حلف بني ياس).[3] Al Nahyan, a branch of Al Falahi, leads the tribe and is the ruling family of the Abu Dhabi.[3][4] Al Maktoum, a branch of Al Falasi, is also a member and is the ruling family of Dubai.[5][6] Al Nahyan and Al Maktoum are the most influential in the UAE federal government, and Abu Dhabi and Dubai have the right to veto any federal legislation. The ruler of Abu Dhabi is customarily elected as the president of the UAE, and the ruler of Dubai is traditionally elected as the vice president and prime minister of the UAE.[7]