Concerning Libya’s neighbors, Gaddafi followed Nasser’s ideas of pan-Arabism and became a fervent advocate of the unity of all Arab states into one Arab nation. He also supported pan-Islamism, the notion of a loose union of all Islamic countries and peoples. After Nasser’s death on September 28, 1970, Gaddafi attempted to take up the mantle of ideological leader of Arab nationalism. He proclaimed the “Federation of Arab Republics” (Libya, Egypt, and Syria) in 1972, hoping to create a pan-Arab state, but the three countries disagreed on the specific terms of the merger.