In 1964, another Palestinian political organization was formed by Yasser Arafat (named Palestinian Liberation Organization), and became the most important Palestinian movement. In 1967, Arab countries and Israel fought the Six-Day War, resulting in Israeli takeover of Gaza Strip and Sinai Peninsula from Egypt, West Bank from Jordan and Golan Heights from Syria. Jordan, Egypt and PLO soon began a low-level War of Attrition, which lasted from 1967 to 1970 with no significant benefits to any side. In 1973, another major war, the Yom Kippur War, was started by Egypt and Syria to regain the territory lost in the Six Day War. Egypt liberated part of the Sinai, and Syria was pushed back to Damascus. Egypt and Israel both claimed victory and till now historians argue as to whom the victory belongs to.