article_snippet: Chardian soldiers near the front line in Gambaru, Nigeria .
article_snippet: A military coalition has recaptured several towns in recent weeks.
article_snippet: Chadian soldiers patrol in the border town of Gamboru, Nigeria, after taking control of the city, February 4, 2015 .
article_snippet: Chad's well-trained army has offered a huge boost to Nigeria in recent weeks, recapturing towns in border areas and pushing into territory near Boko Haram's Sambisa Forest training camps.