Which African country's flag has a white circle containing a red crescent and a red star? Tunisia. Its national flag is a red field with a white disk at the center, containing a red five-pointed star surrounded by a red crescent.
The design was introduced by Tunisian ruler Hussein II Bey after the 1827 Battle of Navarino and was officially approved in 1831. It remained broadly recognizable during the French protectorate and became the flag of the Republic of Tunisia in 1959.
The crescent and star are often described as Islamic symbols, although their use also reflects Tunisia's Ottoman-era history. The red field has been associated with the historic Beylical flag and, in some interpretations, with the blood of martyrs. The white disk is commonly linked with peace or the radiance of the nation.
A common mix-up is Turkey's flag, which also uses a white crescent and star on red but has no white disk. Tunisia's flag proportions and exact construction were formally clarified by law in 1999.