Can diplomacy resolve longstanding Ethiopia-Eritrea differences?

Ethiopia and Eritrea are once again perilously close to all-out war, amid longstanding territorial disputes. The neighbours fought from 1998 to 2000 and remained formally at war for nearly 20 years despite a truce, until the 2018 Jeddah accord brought peace. Ethiopia accuses Eritrea of supporting rebels in Tigray, while Eritrea alleges that landlocked Ethiopia plans to seize one of its key Red Sea ports. The United States is calling for dialogue as regional tensions escalate.