dubai/washington — The U.S. special envoy to Sudan traveled to the African country for the first time on Monday to seek an increase in the flow of aid to millions of people in need and an end to a devastating war. Tom Perriello, who was named Washington’s envoy for Sudan in February, traveled to Port Sudan on the Red Sea coast, the de facto capital for the army-led government. It marked the first visit to the country by a senior U.S. official since the war between the Sudanese Armed Forces and the paramilitary Rapid Support Forces (RSF) broke out in