heikh Zayed of the news of British withdrawal, the nine Gulf sheikhdoms attempted to form a union of Arab emirates, but by mid-1971 they were still unable to agree on terms of union even though the British treaty relationship was to expire in December of that year.
Bahrain became independent in August, and Qatar in September 1971. When the British-Trucial Sheikhdoms treaty expired on December 1, 1971, they became fully independent. The rulers of Abu Dhabi and Dubai decided to form a union between their two emirates independently, prepare a constitution, then call the rulers of the other five emirates to a meeting and offer them the opportunity to join. It was also agreed between the two that the constitution be written by December 2, 1971. On that date, at the Dubai Guesthouse Palace, four other emirates agreed to enter into a union called the United Arab Emirates. Ras al-Khaimah joined later, in early 1972.
The UAE supported military operations from the United States and other Coalition nations that are engaged in the war against the Taliban in Afghanistan (2001) and Saddam Hussein in Iraq (2003) as well as operations supporting the Global War on Terrorism for the Horn of Africa at Al Dhafra Air Base located outside of Abu Dhabi. The air base also supported Allied operations during the 1991 Persian Gulf War and Operation Northern Watch. The country had already signed a military defense agreement with the U.S. in 1994 and one with France in 1995.
On 2 November 2004, the UAE's first president, Sheikh Zayed bin Sultan Al Nahyan, died. His eldest son, Sheikh Khalifa bin Zayed Al Nahyan, succeeded as Emir of Abu Dhabi. In accordance with the constitution, the UAE's Supreme Council of Rulers elected Khalifa as president. Sheikh Mohammad bin Zayed Al Nahyan succeeded Khalifa as Crown Prince of Abu Dhabi. In January 2006, Sheikh Maktoum bin Rashid Al Maktoum, the prime minister of the UAE and the ruler of Dubai, died, and the crown prince Sheikh
