THE Ethiopian Air Force has bombed arms depots and destroyed military hardware in the northern Tigray region, Prime Minister Abiy Ahmed said. The strikes hit sites in and around the regional capital Mekelle and destroyed heavy artillery including rocket launchers, Abiy said in a statement broadcast by state-affiliated Fana. Abiy, who won last year's Nobel Peace Prize, launched a military campaign on Wednesday against the Tigray People's Liberation Front (TPLF), which dominated politics in the country until he came to office in 2018. Ethiopia's leader justified his decision to launch a war in the north of the country, saying on…