Of recent, the Boko Haram forces have met stiff resistance in the hands of the Chadian army.
The Chadian army last week destroyed five core bases of Boko Haram and was even close to capturing their leader Abubarkar Shekau.
Preceding then the Boko Haram rebel troops attacked a Chad base and killed at least 98 Chadian soldiers.
That attack prompted a sharp response from the Chad troops who immediately countered the Boko Haram forces, With the strings of success from the attack, the Boko Haram Forces retreated to their base outside Chad in Sambissa forest.
With the scattering of its forces, the Nigerian Chief of Army staff launched an offensive personally led by him on Boko Haram.