Borj Hamza in Bouïra represents one of the last well-preserved Ottoman fortresses in Algeria's Kabylie region, commanding attention from its dominant hillside position overlooking the town. Constructed between 1540 and 1541 under Pasha Hassan Corso's order as part of strategic fortifications established by the Constantine regency, the fortress was designed to control and monitor eastern territory against Kabyle tribes rebelling against Ottoman authority. The structure witnessed numerous military confrontations between Ottoman forces, indigenous Kabyle populations, and later French troops, enduring conflict until 1871. In 1848, French forces occupied and restored the fortress, converting it into military barracks. Contemporary restoration efforts focus on reinforcing masonry structures within the enclosure while uncovering archaeological remains, including a gunpowder depot buried for over 50 years and an intact Ottoman underground cistern with its original water management system.