The United Arab Emirates (UAE) is a federation of seven principalities or emirates. Its population is assessed at nearly 10 million, but about 90% of the population are expatriates from within and outside the region who work in its open economy. The UAE is a significant U.S. security partner that hosts about 3,500 U.S. military personnel at UAE military facilities, buys sophisticated U.S. military equipment, including missile defenses and combat aircraft, and supports U.S. policy toward Iran. The UAEs August 2020 agreement to normalize relations with Israel might further consolidate the U.S.-UAE relationship and help both the United States and Israel counter Iran. UAE policy will likely not change after UAE President Shaykh Khalifa bin Zayid Al Nuhayyan, who has been largely incapacitated since January 2014, passes from the scene; he is almost certain to be succeeded by his younger brother and de-facto UAE leader Shaykh Muhammad bin Zayid Al Nuhayyan.