The Unified Task Force (UNITAF) was a United States-led, United Nations-sanctioned multinational force which operated in Somalia from 5 December 1992 until 4 May 1993. A United States initiative (code-named Operation Restore Hope), UNITAF was charged with carrying out United Nations Security Council Resolution 794 to create a protected environment for conducting humanitarian operations in the southern half of the country. After the killing of 24 Pakistani peacekeepers in early June, the Security Council changed UNOSOM II's mandate issuing the Resolution 837, which established that UNOSOM troops could use "all necessary measures" to guarantee the delivery of humanitarian aid in accordance to Chapter VII of the United Nations Charter. Background Faced with a humanitarian disaster in Somalia, exacerbated by a complete breakdown in civil order, the United Nations had created the UNOSOM I mission in April 1992. However, the complete intransigence of the local faction leaders operating in Somalia and their rivalries with each other meant that UNOSOM I could not be performed. The mission never reached its mandated strength. Over the final quarter of 1992, the situation in Somalia continued to worsen. Factions were splintering into smaller factions, and then splintered again. Agreements for food distribution with one party were worthless when the stores had to be shipped through the territory of another. Three hundred thousand Somalis had already starved to death, and 1.5 million were at risk of starvation. Some elements were actively opposing the UNOSOM intervention. Troops were shot at, aid ships attacked and prevented from docking, cargo aircraft were fired upon and aid agencies, public and private, were subject to threats, looting and extortion. By November, General Mohamed Farrah Aidid had grown confident enough to defy the Security Council formally and demand the withdrawal of peacekeepers, as well as declaring hostile intent against any further UN deployments. In the face of mounting public pressure and frustration, UN Secretary-General Boutros Boutros-Ghali presented several options to the Security Council. Diplomatic avenues having proved largely fruitless, he recommended that a significant show of force was required to bring the armed groups to heel. Chapter VII of the Charter of the United Nations allows for "action by air, sea or land forces as may be necessary to maintain or restore international peace and security." Boutros-Ghali believed the time had come for employing this clause and moving on from peacekeeping. However, Boutros-Ghali felt that such action would be difficult to apply