Final answer:
The violent repression and massacre of Algerian demonstrators on 17 October 1961 in Paris was ordered by the French government under the leadership of Charles de Gaulle.
Step-by-step explanation:
The violent repression and massacre of Algerian demonstrators on 17 October 1961 in Paris was ordered by the French government under the leadership of Charles de Gaulle. At the time, de Gaulle was the President of France and was responsible for maintaining law and order in the country. The Algerian demonstrators were protesting against the discriminatory policies of the French government towards Algerian independence.