Siege of Khartoum currency to the post of Governor-general in January 1884 and arrived at Khartoum on 18 February 1884, less than one month prior to the siege. Muhammad Ahmad bin Abd Allah, self-proclaimed Mahdi, engaged in an 18-year Mahdist War (1881–99) against the British Empire (Khedivate of Egypt), the Ethiopian Empire, the Congo Free State, and the Kingdom of Italy. In a series of telegrams in early March, 1884, Gordon informed the British government that the Mahdi were closing the roads, cutting off supplies and severing telegraph communications. As the fighting drew closer to the city walls, and the blockade tightened, the siege
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