From the Summary: "The United Arab Emirates (UAE) is a significant U.S. partner in Gulf security, helping to address multiple regional threats by hosting about 5,000 U.S. military personnel at UAE military facilities under a bilateral defense cooperation agreement (DCA). The UAE is a significant buyer of U.S. military equipment, including sophisticated missile defenses, and it reportedly wants to buy the F35 combat aircraft. The alliance is expected to continue after UAE President Shaykh Khalifa bin Zayid Al Nuhayyan, who suffered an incapacitating stroke in January 2014, is succeeded by his younger brother and de-facto UAE leader Shaykh Muhammad bin Zayid Al Nuhayyan."
CRS Report for Congress, RS21852
Congressional Research Service: https://crsreports.congress.gov/