Egyptian President Abdel Fattah al-Sisi and Ethiopian Prime Minister Abiy Ahmed are set to meet in Russia to discuss a dispute over a hydropower dam that Ethiopia is building on the River Nile, which has caused a long-running diplomatic standoff. Ethiopia aims to provide electricity to homes of its 105 million citizens and Egypt wants a steady supply of water for its 98 million citizens. Global Chairman at Fairfax Africa Fund (US), Zemedeneh Negatu joins CNBC Africa for more.