As a result of the breakdown of various provisions of the
1972 Addis Ababa agreement that ended the
First Sudanese Civil War breaking down, the
Second Sudanese Civil War erupted between the Sudanese government and the SPLM/A. This conflict, alongside massive famine and socioeconomic instability, led to over 2 million casualties. An additional 5 million people became
internally-displaced individuals while over 500,000 more fled to neighboring countries as
refugees. The increasing spillover from the conflict onto other countries in the form of refugees as well as increasing media coverage of the growing crisis led to a call for organizations like the UN to intervene and provide humanitarian assistance. One of the first tests of this neutral model came with the attempted concurrent distribution of aid to the SPLM/A held city of
Yirol and the government held city of
Wau. Amidst this rejection by both parties, international actors lost interest and viewed the operation as a publicity stunt that failed to consider sovereignty. Consequently, a 1989 conference dedicated to relief operations was held in Khartoum, leading to an agreement that Operation Lifeline Sudan would a UN "umbrella organization" that would grant both diplomatic legitimacy and operational capacity to humanitarian aid distributed to both sides of the Second Sudanese Civil War. Central to this agreement was the principle that "corridors of tranquility" would allow for the safe transportation and impartial distribution of essential food aid through either the air or through roads. This new humanitarian intervention, made with the agreement of both Sudan and rebel factions in the south, was noteworthy in its guarantee of passages through which humanitarian aid could be delivered in a neutral manner without being disrupted by armed combatants == Structure and Mandate ==