Flag of the United Arab Emirates
|Use||National flag and state ensign|
|Adopted||December 2, 1971|
|Design||A horizontal tricolour of green, white and black with a vertical 1⁄4-width red bar at the hoist|
All emirates use the federal flag interchangeably as the flag of the emirate.
Flag of each emirate
Each of the seven emirates within the United Arab Emirates originally had a common red plain flag as each emirate's banner, the red banner represents the descension and allegiance to prophet Muhammad. In 1820, six out of the seven emirates signed the General treaty agreement with the British Empire which compelled them to be under the British Protectorate rule and protection in the region. A white segment was enforced to be added to the hoist of each emirate's flag.
Fujairah was the only emirate which did not sign the general treaty in 1820 with the British protectorate and therefore continued to use its plain red flag.
Dubai and Ajman
Before 1952, the flag of Fujairah was plain red. Fujairah did not sign the general treaty in 1820 with the British protectorate and therefore is still using its red plain flag. In 1952, the emirate's name was added to the flag, and a red flag with a white Arabic calligraphy of the emirate name was adopted as an ensign to distinguish it from the surrounding emirates.
Ras al-Khaimah and Sharjah
The Flag of Umm al-Quwain consists of a red background, a white bar at the hoist similar the flags of Ajman and Dubai, and a large white star and crescent in the center similar to the flag of Turkey.