طنب الكبرى
On 2 December 1971, Dubai, together with Abu Dhabi, Sharjah, Ajman, Umm Al Quwain and Fujairah joined in the Act of Union to form the United Arab Emirates. The seventh emirate, Ras Al Khaimah, joined the UAE on 10 February 1972 following Iranian seizure of Abu Musa and the Greater and Lesser Tunbs from Ras Al Khaimah.