Countdown to War
On May 15, Israel's Independence Day, Egyptian troops began moving into the Sinai and massing near the Israeli border. By May 18, Syrian troops were prepared for battle along the Golan Heights.
Nasser ordered the UN Emergency Force (UNEF), stationed in the Sinai since 1956 as a buffer between Israeli and Egyptian forces after Israel's withdrawal following the Sinai Campaign, to withdraw on May 16. Without bringing the matter to the attention of the General Assembly (as his predecessor had promised), Secretary-General U Thant complied with the demand. After the withdrawal of the UNEF, the Voice of the Arabs radio station proclaimed on May 18, 1967:
As of today, there no longer exists an international emergency force to protect Israel. We shall exercise patience no more. We shall not complain any more to the UN about Israel. The sole method we shall apply against Israel is total war, which will result in the extermination of Zionist existence.
An enthusiastic echo was heard May 20 from Syrian Defense Minister Hafez Assad:
Our forces are now entirely ready not only to repulse the aggression, but to initiate the act of liberation itself, and to explode the Zionist presence in the Arab homeland. The Syrian army, with its finger on the trigger, is united....I, as a military man, believe that the time has come to enter into a battle of annihilation
The Blockade
On May 22, Egypt closed The Straits of Tiran to all Israeli shipping and all ships bound for Eilat This blockade cut off Israel's only supply route with Asia and stopped the flow of oil from its main supplier, Iran.
In 1956, the United States gave Israel assurances that it recognized the Jewish State's right of access to the Straits of Tiran. In 1957, at the UN, 17 maritime powers declared that Israel had a right to transit the Strait. Moreover, the blockade violated the Convention on the Territorial Sea and Contiguous Zone, which was adopted by the UN Conference on the Law of the Sea on April 27, 1958.
President Johnson expressed the belief that the blockade was illegal and unsuccessfully tried to organize an international flotilla to test it. At the same time, he advised the Israelis not to take any military action. After the war, he acknowledged the closure of the Strait of Tiran was the
casus belli (June 19, 1967):
If a single act of folly was more responsible for this explosion than any other it was the arbitrary and dangerous announced decision that the Strait of Tiran would be closed. The right of innocent maritime passage must be preserved for all nations.
Escalation
Nasser was aware of the pressure he was exerting to force Israel's hand, and challenged Israel to fight almost daily. The day after the blockade was set up, he said defiantly: "The Jews threaten to make war. I reply: Welcome! We are ready for war. Nasser challenged Israel to fight almost daily. "Our basic objective will be the destruction of Israel. The Arab people want to fight,"
he said on May 27.
The following day, he added: "We will not accept any...coexistence with Israel...Today the issue is not the establishment of peace between the Arab states and Israel....The war with Israel is in effect since 1948. King Hussein of Jordan Jordan signed a defense pact with Egypt on May 30. Nasser then announced:
The armies of Egypt, Jordan, Syria and Lebanon are poised on the borders of Israel...to face the challenge, while standing behind us are the armies of Iraq, Algeria, Kuwait, Sudan and the whole Arab nation. This act will astound the world. Today they will know that the Arabs are arranged for battle, the critical hour has arrived. We have reached the stage of serious action and not declarations.
President Abdur Rahman Aref of Iraq joined in the war of words: "The existence of Israel is an error which must be rectified. This is our opportunity to wipe out the ignominy which has been with us since 1948. Our goal is clear -- to wipe Israel off the map. On June 4, Irag Irag joined the military alliance with Egypt, Jordan, Syria