Battle of Sidi-Brahim
1845 CE.
Shown on the map at 35.261°, -0.568°.
The Battle of Sidi Brahim, 23 to 25 September 1845, took place during the French conquest of Algeria, near Souahlia in Tlemcen Province. Between 1,000 and 1,200 Algerian irregulars under Emir Abdelkader ambushed a French detachment of around 500 led by Lieutenant-Colonel Lucien de Montagnac. Most of the latter were killed or captured in the initial fighting, and only a handful were reported to have ultimately survived the encounter. Despite their defeat, the French used the battle as a symbol of the price paid to acquire French Algeria, and in 1898, a monument to the "martyrs of Sidi-Brahim" was installed in Oran. After Algerian independence in 1962, the monument was transformed into one commemorating Emir Abdelkader, and anti-colonial resistance in general.
Text from the Wikipedia article Battle of Sidi Brahim, licensed CC BY-SA 4.0.