The Armed Forces of Liberia (AFL) are the country's armed forces. Founded as the Liberian Frontier Force in 1908, the military was renamed in 1956. For virtually all of its history, the AFL has received considerable material and training assistance from the United States. For most of the 1941–89 period, training was largely provided by U.S. advisors, with combat experience in the Second World War also playing a role in training. After UN Security Council Resolution 1509 in September 2003, the United Nations Mission in Liberia arrived to referee the ceasefire with units from Ghana, Nigeria, Pakistan, and China with the view to assist the National Transitional Government of Liberia in forming the new Liberian military.