ETHIOPIA has declared that threats of any kind towards resolving a dispute with its neighbours over the filling and operation of a massive hydropower dam were "misguided, unproductive and clear violations of international law". Prime Minister Abiy Ahmed's office made no mention of any person or any country in a statement on the Grand Ethiopian Renaissance Dam (GERD), which is at the centre of a dispute over Nile water supplies. But his comment came hours after U.S. President Donald Trump held a phone call with the Sudanese Prime Minister Abdalla Hamdok in which they called for an amicable solution between…