UNITED Nations aid chief Martin Griffiths has revealed that 200,000 people have been displaced by fighting in Ethiopia's Amhara region and 54,000 in its Afar region. In recent weeks fighting has spread into the two regions neighbouring Tigray, where a war erupted eight months ago between Ethiopia's central government and the Tigray People's Liberation Front (TPLF). "We need 100 trucks a day going into Tigray to meet humanitarian needs," Griffiths told reporters in Ethiopia's capital Addis Ababa, adding that the number was a "calculated need" and not "overestimated." The U.N. aid chief said also 122 trucks made it into Tigray…