Wiki- Six day War
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According to Chaim Herzog:
On June 19, 1967, the National Unity Government [of Israel] voted unanimously to return the Sinai to Egypt and the Golan Heights to Syria in return for peace agreements. The Golans would have to be demilitarized and special arrangement would be negotiated for the Straits of Tiran. The government also resolved to open negotiations with King Hussein of Jordan regarding the Eastern border.[148]
The Israeli decision was to be conveyed to the Arab nations by the United States. The US was informed of the decision, but not that it was to transmit it. There is no evidence of receipt from Egypt or Syria, and some historians claim that they may have never received the offer.[149]
Later, the Khartoum Arab Summit resolved that there would be "no peace, no recognition and no negotiation with Israel." ....
The 1967 War also laid the foundation for future discord in the region - as on November 22, 1967, the UN Security Council adopted Resolution 242, the "land for peace" formula, which called for Israeli withdrawal "from territories occupied" in 1967 in return for "the termination of all claims or states of belligerency."...