Complex sentence: Berbers in Morocco were also disadvantaged after the independence of 1956, as while they were well-represented in the police force and army, they were not in government, and their French patrons had lost power.
Split into simpler sentences: Berbers in Morocco were also disadvantaged after the independence of 1956. They were well-represented in the police force and army, but did not have a voice in the government, and their French patrons had lost power.