The Tunisian–Algerian War of 1807 was a conflict between the Beylik of Tunis and the Deylik of Algiers. The war led to the emancipation of Tunisia from any sort of Algerian influence, and the ending of the tribute paid by Tunisia to Algeria since 1756.

The Odjak of Algiers((efn|also spelled Ujaq was a unit of the Algerian army. It was a highly autonomous part of the Janissary Corps, acting completely independently from the rest of the corps, similar to the relationship between Algiers and the Sublime Porte. Led by an Agha, they also took part in the country's internal administration and politics, ruling the country for several years. They acted as a defense unit, a Praetorian Guard, and an instrument of repression until 1817.