Guest of the day - Rémi Carayol, journalist: France's position in the Sahel is "virtually impossible"

Ten years ago almost to the day, the French military operation Serval was launched by François Hollande, at the request of Mali.

Journalist Rémi Carayol signs "The Sahelian mirage - France at war in Africa", a book against Operation Serval in Mali and then that of Barkhane in the Sahel region.

For him, France's war against terrorism was "lost in advance" because the French army had software inherited from the colonial period".