After the Six Day's War, Egypt's role, as the leader of the Pan-Arab movement, was severely weakened. Other Arab nationalist organizations started to branch out on their own, independent of Egypt and other Arab countries. The Palestinians, in particular, began to form their own organization that was centered on Palestinian nationalism, and not a Pan-Arab one. Furthermore, Gamal Nasser's sudden death in 1970, left the Pan-Arab movement without a clear leader. 