Two major previous Ethiopian missions were in Liberia and Darfur. The United Nations Mission in Liberia (UNMIL) was established by United Nations Security Council Resolution 1509, of 19 September 2003, to support the implementation of the ceasefire agreement and the peace process, protect United Nations staff, facilities and civilians, support humanitarian and human rights activities; as well as assist in national security reform, including national police training and formation of a new, restructured military. In November 2007, nearly 1,800 Ethiopian troops serving with the United Nations Mission in Liberia (UNMIL) were presented with UN Peacekeeping medals for their "invaluable contribution to the peace process." Up to three Ethiopian battalions used to constitute Sector 4 of the UN Mission, covering the southern part of the country. The mission ended in 2018.