The national flag of Algeria consists of two equal vertical bars, green and white, charged in the center with a red star and crescent, a symbol of Islam as the nation's prominent faith. The flag was a
Red flags of Algiers displayed as war trophies in the cathedral of Saint-Louis-des-Invalides, Paris.
Star spangled green flag of the Ottoman Algerian corsairs. National maritime museum of Algiers.
A Sea Fight with Barbary Corsairs by Laureys a Castro, c. 1681. Note the various flags with crescents used by the pirates.
Laureys a Castro: The Battle of Lepanto (Barbary corsair fleet on the right)
The Regency of Algiers was an early modern semi-independent Ottoman province and nominal vassal state on the Barbary Coast of North Africa from 1516 to 1830. Founded by the privateer brothers Aruj and
Flag of Algeria
…no disagreement among Algerian, Islamic, and even foreign sources that the reference for the green color is Islamic. Ottoman admiral and ruler of the regency of Algiers Hayreddine Barbarossa adopted this color as an Islamic emblem in his wars against the Christian powers. The same color was later adopted by Algerian…
Aruj Reis, Sultan of Algiers, 1590s. University of Heidelberg library.
Hayreddin Reis, first Beylerbey of Algiers. University of Heidelberg library.
Barbary state of Algeria within the Ottoman Empire (in white) during the Ottoman-Habsburg wars in 1560, The Historical Atlas by William R. Shepherd, 1923.
Mid-16th century Ottoman Algerian (yellow) attacks against Saadians (green).