Nigeria’s campaign to quash the Islamist militant group Boko Haram has triggered a surge of bombings in neighboring Cameroon, where the army says it’s making headway in stopping attacks on military targets.

Cameroon’s Far North region has been hit by as many as 19 militant attacks since the beginning of the year, mostly bombings by teenagers with explosives strapped to their bodies. At least 74 people were killed, in addition to almost 1,100 civilians who died in extremist violence since 2013, according to government data.

Following his election last year, Nigerian President Muhammadu Buhari ordered the army to wipe out Boko Haram. The group has since lost territory in the northeast but continues to carry out bombings and hit-and-run attacks.

Cameroon, the world’s fifth-biggest cocoa producer, says it’s defeating the insurgents with the help of a joint military task force set up in August to combat cross-border attacks. The 8,700-member force will consist of soldiers from Cameroon, Nigeria, Chad, and Niger; France and China have pledged to donate weapons and vehicles.