The French Air Force intercepted a Moroccan DC-3 bound for Tunis

In October 1956, the French Air Force intercepted a Moroccan DC-3 bound for Tunis, carrying Ahmed Ben Bella, Mohammed Boudiaf, Mohamed Khider and Hocine Aït Ahmed, and forced it to land in Algiers. Lacoste had the FLN external political leaders arrested and imprisoned for the duration of the war. This action caused the remaining rebel leaders to harden their stance.