Niger–Nigeria relations little interest in a pan-Hausa state. The division of Lake Chad, although forced to go to mediation between Chad, Cameroon, Niger, and Nigeria, awaits formal settlement and has not been a source of tension between Niamey and Abuja. Nigeria has an embassy in Niamey, while Niger maintains an embassy in Abuja. The cities of southern Niger and Northern Nigeria have been linked in the Trans-Saharan trade going back to the medieval period. Cities such as Kano and Katsina have long been the southern terminus of trade networks which sustain much of Niger's economy. Nigeria benefits from the trade and agricultural
Cameroon–Nigeria relations of not doing enough to fight Boko Haram even though the terrorist group frequently crosses into Cameroonian territory. Cameroon has been attacked several times by Boko Haram. Border closures after attacks in Nigeria in 2012 to prevent further infiltration by Boko Haram had a negative impact on the Cameroonian economy. In May 2014, in the wake of the Chibok schoolgirl kidnapping, "[Cameroon's] defense minister Edgard Allain Mebe Ngo'o met with Chad's minister of national defense, Benaindo Tatola, in Yaounde. Ngo'o said Chad had also deployed troops to work together with Cameroonian forces on the borders with Nigeria. He also said