Fadhma was personally present at many fights in which Bou Baghla was involved, particularly the battle of Tachekkirt won by Boubaghla forces (18–19 July 1854), where the French general Jacques Louis César Randon was caught but managed to escape later. On 26 December 1854, Bou Baghla was killed; some sources claim it was due to treason of some of his allies. The resistance was left without a charismatic leader and a commander able to guide it efficiently. For this reason, during the first months of 1855, on a sanctuary built on top of the Azru Nethor peak, not far from the village where Fadhma was born, there was a great council among combatants and important figures of the tribes in Kabylie. They decided to grant Lalla Fadhma, assisted by her brothers, the command of combat.