The story is about how Algeria achieved independence through terrorist attacks against the French government in the city of Casbah. The police made life difficult for the inhabitants and destroyed every member of the FLN that was behind the attacks in 1957 but the fall of the FLN has made such an impression on the people of Algeria that they took action a few years later to gain independence in 1962.
Got interested in this film as it is in the top 10 list here. Liked the documentary style and how the Algerians fought for their freedom! Read that the US counter intelligence group studied the film in detail to understand how not to make the same mistake as the French in their fight against terrorists and to lose the overall battle in the end.
Internet Movie Database Link