Capture of Algiers

The capture of Algiers was the culmination of the French military expedition of 1830 in North Africa. After establishing a solid bridgehead at Sidi Ferruch, French troops advanced toward the Ottoman capital of the Regency of Algiers. On 4 July, after several pitched battles and intense artillery bombardment of Turkish fortifications, the French launched the final assault. On 5 July Dey Hussein capitulated. This major victory marked the effective beginning of French colonial domination in Algeria. It was widely publicized in France, though overshadowed a few days later by the July Revolution.

The conquest of Algiers had been decided by King Charles X for political as much as economic reasons: to burnish the monarchy's reputation before the 1830 legislative elections and secure French commercial interests in the Mediterranean. The diplomatic humiliation of the "fan stroke" (1827) provided a convenient pretext for intervention. After successful landing at Sidi Ferruch, French forces advanced slowly toward Algiers, facing Ottoman defensive lines. The city was well fortified but isolated, weakened by naval blockade and unable to receive reinforcements. Dey Hussein, aware of French logistical superiority, attempted negotiation, but Bourmont demanded unconditional surrender.

The French army advanced methodically, establishing heavy artillery batteries on heights around Algiers. On 3 July intense bombardment was launched against Ottoman lines. On the 4th a coordinated assault was mounted against redoubts, supported by the navy. French troops breached defenses on the Bouzaréah plateau. General Damrémont led the decisive assault against the city gates while sapper units outflanked fortifications. Losses were moderate on the French side thanks to excellent coordination and high troop morale. Facing collapse of his lines and to avoid sack of the city, the Dey surrendered on 5 July.

The fall of Algiers marked the end of the Ottoman Regency and the beginning of French colonization of Algeria. The capitulation treaty guaranteed inhabitants respect for religion and property, but this promise was quickly violated by colonial authorities. In France military victory was eclipsed a few days later by the July Revolution, which overthrew Charles X. However, Louis-Philippe's new regime retained Algeria as colonial territory. In the long term this conquest led to prolonged war with Algerian tribes, notably under Emir Abdelkader, and inaugurated more than a century of French colonial presence in North Africa.