«Looking back at Suez, I regret what I did. I never should have pressed Israel to evacuate the Sinai».
In October 1965, Max Fisher visited Eisenhower at his Gettysburg farm. Eisenhower admitted to him that is was wrong of US to put pressure and force Israel to from Sinai without securing ironclad guarantees against Egyptian aggression and blockades
In 1956, Egyptian-commanded fedayeen terrorist attacks led Israel to join Britain and France in the Sinai campaign against Egypt. Two days into the war, President Dwight Eisenhower called Israel’s Prime Minister David Ben-Gurion. According to a biographer of Jewish leader Max Fisher, Eisenhower admonished Prime Minister Ben-Gurion:
«You ought not forget that the strength of Israel and her future are bound up with the United States».
This was followed by specific threats: If Israel did not leave Sinai and Gaza there would be UN condemnation, U.S. aid would be terminated, the tax-status of charitable contributions would be challenged.
Despite Arab aggression against the Jewish communities in Palestine in 1947 and 1948, Palestinian Arabs still demand today a «right of return» to areas within Israel’s borders since the 1949 Armistice.
The Arab attacked Jews in 1920, 1921, 1929 and 1936. The British response was to reward Arab aggression against the Jews and impose draconian restrictions on Jewish immigration. The pattern of Arab attacks and rewards would repeat itself time and again. Arab states, terrorist groups and the Palestinian Arabs believed that they could wage «wars of limited liability».
They could unleash attacks with impunity in an attempt to wipe out Israel, convinced that if they were defeated they could return to a status quo ante, or even achieve diplomatically what they couldn’t win on the battlefield. Territories captured by Israel would be returned and not annexed, terrorist leaders would be honored and not condemned, and Jews/Israel would be blamed.
Source: Jerusalem Post
There Are Consequences for Choosing Aggression – Lenny Ben-David
ivarfjeld.com 
Does regret mean he repented?
Shalom Dallas Kirk.
What is the difference between regret and repent? The whole world might regret what they have done, but not being able to do anything about it. To repent is to make a U-turn. I guess Eisenhower would have repented, if he had told the Jewish people they should go back and settle in Sinai for their own best and security of the Jewish state.
This only shows what are politicians, Israel shouldn’t trust any body but itself.
It is a great pity that Obama doesn’t have the courage to apply similar pressure to the Jewish state to withdraw from the Occupied Palestinian Territory of the West Bank, which it conquered in 1967.
That territory that you refer to, was occupied at the time by the “Arab State” of Hashemite Kingdom of Jordan, which joined in with Nasser’s Egypt in shelling West Jerusalem. The conquest came later. Jordan refused all peace overtures for many years. Which state do you inhabit, Arrbuthnot? Does it have a name?