News Analysis A recent strike by Cameroonian rebels in Cameroon’s Northwestern region has drawn speculation that separatist groups in Nigeria’s Southeast and Cameroon’s border areas are on parallel tracks. The English-speaking rebels in Cameroon’s mountainous border zone with Nigeria are fighting for national independence from the Francophone majority under the banner of a self-proclaimed nation of “Ambazonia.”  Their cause resonates with the separatist movement in Nigeria’s southeast that is seeking an independent Biafra, feeding speculation that both nations are heading toward break ups. After five bloody years of guerilla strikes in Cameroon and brutal responses, both sides in the conflict stand charged with serious human rights violations, according to Voice of America. The conflict reached a grim milestone last week, when the armed rebels, using improvised explosive devices (IEDs) and an anti-tank rocket launcher, ambushed two convoys of Cameroon’s elite force in Northwest, killing 15 soldiers.  The Cameroonian military reportedly said Sept. 22 that anti-tank …