Opération Bison

For example, on one occasion, Tombalbaye summoned Arnauld to a meeting of the Defence Council and ordered him to eliminate all Arabs living at N'Goura, a locality not far from the capital Fort-Lamy, because they didn't deserve to be called Chadians.

"[4] The French used tactics against the insurgents that emphasized the use of air power for ground support, similarly to what the United States was doing in those years in Vietnam.

[5] In July 1971 the French ceased direct military involvement, and on August 28, 1972, the operation was officially considered ended, as symbolized by the departure that day of Cortadellas, with most of the troops.

Cortadellas' place in Chad was taken by the General J.-H. Auffray, with a single regiment of French Marines stationed in the capital and 600 army advisors, deployed in Chadian uniforms.

The operation cost the lives of 50 Frenchmen (among them Cortadellas' son), but failed to destroy the insurgency, which promptly took on new vigor when the French departed.