Khartoum of them diplomats. The US ambassador, the US deputy ambassador, and the Belgian "chargé d'affaires" were murdered. The remaining hostages were released. A 1973 United States Department of State document, declassified in 2006, concluded: "The Khartoum operation was planned and carried out with the full knowledge and personal approval of Yasser Arafat." In 1977, the first oil pipeline between Khartoum and the Port of Sudan was completed. Throughout the 1970s and 1980s, Khartoum was the destination for hundreds of thousands refugees fleeing conflicts in neighboring nations such as Chad, Eritrea, Ethiopia, and Uganda. Many Eritrean and Ethiopian refugees assimilated into
Siege of Khartoum injustices caused by the Egyptian colonial administration: arbitrary imprisonments were cancelled, torture instruments were destroyed, and taxes were remitted. To enlist the support of the population, Gordon legalised slavery, despite the fact that he himself had abolished it a few years earlier. This decision was popular in Khartoum, but caused controversy in Britain. Gordon was determined to "smash up the Mahdi". He requested that a regiment of Turkish soldiers be sent to Khartoum as Egypt was still nominally a province of the Ottoman Empire. When this was refused, Gordon asked for a unit of Indian Muslim troops and later for