Battle of the Mekerra

The Battle of the Mekerra opposed French troops commanded by Colonel Cavaignac to important contingent of Abd el-Kader near Sidi Bel Abbès. Battle was triggered as French secured Mekerra valley, strategic passage toward western Tell. Thanks to fire discipline and intelligent use of terrain, French troops repulsed enemy charges and obliged Abd el-Kader to retreat toward Ouarsenis mountains.

After Moroccan reverses of 1844 and defeats of his regular forces in 1845, Abd el-Kader attempted to harass French columns north of Tlemcen. Mekerra valley, densely wooded and difficult of access, constituted strategic axis leading to Mascara and Sidi Bel Abbès. Colonel Cavaignac, local commander, deployed forces with objective of securing logistics, but faced surprise attack attempt by emir's troops.

Cavaignac established defensive perimeter on heights bordering river in crossfire position. Foreign Legion held center, zouaves on left flank, spahis held as mobile reserve. During first enemy charges infantry held line in rolling fire. When enemy attempted outflanking from south, Cavaignac committed cavalry which counterattacked effectively, breaking enemy cohesion. Fugitives left many dead on the field.

This victory reinforced French position in western Algeria. It allowed consolidation of military routes toward Tlemcen and installation of permanent post at Sidi Bel Abbès, which would become Foreign Legion base. Abd el-Kader's influence retreated further in the region. For Cavaignac this battle contributed to military reputation that would play role in his political career under Second Republic.