Challe was one of the heads of the Algiers putsch of 1961, along with Raoul Salan, Edmond Jouhaud, and André Zeller. A prime reason for Challe's involvement was his concern that the Muslim harkis who had served with the French Army against the FLN would be subject to reprisals in the event of Algerian independence. In the event, large numbers of these loyalists were massacred in 1962. After the putsch failed, he and Zeller surrendered to the French Army (while Salan and Jouhaud created the OAS). Challe was sentenced to 15 years imprisonment. He was freed in December 1966 and received amnesty from President de Gaulle in 1968.