Ethiopia and Eritrea broke diplomatic ties on Thursday, accusing each other of stoking internal conflicts as fighting continued in northern Ethiopia. Long-standing tensions between the two neighbours reached a crisis point after heavy fighting broke out last week between Ethiopian forces and the Tigray People’s Liberation Front (TPLF), raising fears of a return to the devastating 2020–2022 civil war that killed an estimated 600,000 people. Ethiopia accused Eritrea of supporting the TPLF. Addis...