ETHIOPIAN Prime Minister Abiy Ahmed denied on Monday that a rebellious northern force his troops have battled for over a month would have the capacity to mount a guerrilla war from the mountains of Tigray. Federal troops have captured the regional capital Mekelle from the former local ruling party, the Tigray People's Liberation Front (TPLF), and declared an end to their offensive. But TPLF leaders say they are fighting back on various fronts around Mekelle. Ethiopia experts fear a drawn-out insurgency with a destabilising impact around east Africa. "The criminal clique pushed a patently false narrative that its fighters and…