SEPARATIST rebels have killed 15 Cameroonian soldiers and several civilians in two bomb attacks this month, according to the government, marking a new phase of a conflict that has dragged on for nearly five years and cost more than 3,000 lives. Insurgents are seeking to form a breakaway state called Ambazonia in western Cameroon. They began fighting the military in 2017 after civilian protests calling for greater representation of the French-speaking country's Anglophone minority were violently repressed. What began with occasional raids by secessionists on police and army outposts has turned into a protracted fight that has sucked the life…