The 1964 Arab League summit was the first summit of the Arab League, held in Cairo, Egypt, on 13–16 January 1964 and attended by all thirteen of the then member states: United Arab Republic (Egypt), Iraq, Lebanon, Syria, Saudi Arabia, Jordan, Yemen Arab Republic, Libya, Sudan, Morocco, Tunisia, Kuwait and Algeria. At the summit, held on the initiative of the United Arab Republic (modern-day Egypt only, following the 1961 secession of Syria from the union), it was decided to carry out planning to resolve inter-Arab conflicts and to adopt common principles regarding the struggle against imperialism and the "aggressive policies" of Israel. The key resolutions from the summit were expanded and recorded in a letter to the United Nations eight months later at the 1964 Arab League summit (Alexandria). Background At the time, Syria and Palestinian fedayeen called for a rematch of the 1948 Arab-Israeli War, but other Arab states (most notably Egypt under Gamal Abdel Nasser) felt it was not the right moment to strike. Instead, they agreed on the non-military belligerent tactic of diverting water from the Jordan River so that Israel could not use it. This diversion was called the 1964 Headwater Diversion Plan. It went against the original agreed proposals of the River Jordan by both Israel and the Arabs in the 1955 Unified Johnston Plan, also known as the Jordan Valley Unified Water Plan. This was one of the factors that later precipitated the Six-Day War in 1967. The immediate catalyst for the summit was Israel's proposed diversion of water from Lake Tiberias. In reaction to Syria's repeated charges of Egyptian reluctance for military confrontation with Israel, Egyptian president Gamal Abdel Nasser (1918–1970) championed an Arab plan to divert two sources of the River Jordan, the Hasbani River and the Banias. Nasser blamed Arab divisions for what he deemed "the disastrous situation". This had been the chosen option out of two proposals of the 1964 Headwater Diversion Plan. On 23 December 1963, he said: In order to confront Israel, which challenged us last week when its chief-of-staff stood up and said "we shall divert the water against the will of the Arabs and the Arabs can do what they want", a meeting between Arab Kings and Heads of State must take place as soon as possible, regardless of the conflicts and differences between them. Those with whom we are in conflict, we are prepared to