NOTE: This Perspective was originally published in the Summer 2017 issue of the Middle East Quarterly. It is part of a forthcoming BESA Center study on the Six-Day War that will be published to coincide with the war’s fiftieth anniversary. 

EXECUTIVE SUMMARY: It has long been conventional wisdom to view the June 1967 war as an accidental conflagration that neither Arabs nor Israelis desired, yet none were able to prevent. This could not be further from the truth. Its specific timing resulted of course from the convergence of a number of particular causes at a particular juncture. But its general cause—the total Arab rejection of Jewish statehood—made another all-out Arab-Israeli war a foregone conclusion.

The standard narrative regarding the Six-Day War runs as follows: Had Egyptian president Gamal Abdel Nasser not fallen for a false Soviet warning of Israeli troop concentrations along the Syrian border and deployed his forces in the Sinai Peninsula, the slippery slope to war would have been averted altogether. Had Israel not misconstrued Egyptian grandstanding for a mortal threat to its national security, if not its very survival, it would have foregone the preemptive strike that started the war. In short, it was a largely accidental and unnecessary war born of mutual miscalculations and misunderstandings.

This view could not be further from the truth. If wars are much like road accidents, as the British historian A.J.P. Taylor famously quipped, having a general cause and particular causes at the same time, then the June 1967 war was anything but accidental. Its specific timing resulted of course from the convergence of a number of particular causes at a particular juncture. But its general cause—the total Arab rejection of Jewish statehood, starkly demonstrated by the concerted attempt to destroy the state of Israel at birth and the unwavering determination to rectify this “unfinished business”—made another all-out Arab-Israeli war a foregone conclusion.

Pan-Arabism’s Politics of Violence

No sooner had the doctrine of pan-Arabism, postulating the existence of “a single nation bound by the common ties of language, religion and history…. behind the facade of a multiplicity of sovereign states” come to dominate inter-Arab politics at the end of World War I than anti-Zionism became its most effective rallying cry: not from concern for the wellbeing of the Palestinian Arabs but from the desire to fend off a supposed foreign encroachment on the perceived pan-Arab patrimony. As Abdel Rahman Azzam, secretary-general of the Arab League, told Zionist officials in September 1947:

For me, you may be a fact, but for [the Arab masses], you are not a fact at all—you are a temporary phenomenon. Centuries ago, the Crusaders established themselves in our midst against our will, and in 200 years, we ejected them. This was because we never made the mistake of accepting them as a fact.

On rare occasions, this outright rejectionism was manifested in quiet attempts to persuade the Zionist leaders to forego their quest for statehood and acquiesce in subject status within a regional pan-Arab empire. Nuri Said, a long-time Iraqi prime minister, made this suggestion at a 1936 meeting with Chaim Weizmann while Transjordan’s King Abdullah of the Hashemite family secretly extended an offer to Golda Meir (in November 1947 and May 1948) to incorporate Palestine’s Jewish community into the “Greater Syrian” empire he was striving to create at the time. For most of the time, however, the Arabs’ primary instrument for opposing Jewish national aspirations was violence, and what determined their politics and diplomacy was the relative success or failure of that instrument in any given period. As early as April 1920, pan-Arab nationalists sought to rally support for incorporating Palestine into the short-lived Syrian kingdom headed by Abdullah’s brother, Faisal, by carrying out a pogrom in Jerusalem in which five Jews were murdered and 211 wounded. The following year, Arab riots claimed a far higher toll: some 90 dead and hundreds wounded. In the summer of 1929, another wave of violence resulted in the death of 133 Jews and the wounding of hundreds more.

For quite some time, this violent approach seemed to work. It was especially effective in influencing the British, who had been appointed the mandatory power in Palestine by the League of Nations. Though their explicit purpose was to facilitate the establishment of a Jewish national home in Palestine, the British authorities repeatedly gave in to Arab violence aimed at averting that purpose and to the demands that followed upon it. In two White Papers, issued in 1922 and 1930 respectively, London severely compromised the prospective Jewish national home by imposing harsh restrictions on immigration and land sales to Jews.

In July 1937, Arab violence reaped its greatest reward when a British commission of inquiry, headed by Lord Peel, recommended repudiating the terms of the mandate altogether in favor of partitioning Palestine into two states: a large Arab state, united with Transjordan, that would occupy some 90 percent of the mandate territory, and a Jewish state in what was left. This was followed in May 1939 by another White Paper that imposed even more draconian restrictions on Jewish immigration and land purchases, closing the door to Palestine for Jews desperate to flee Nazi Europe and threatening the survival of the Jewish national project. Agitating for more, the Arabs dismissed both plans as insufficient.

They did the same in November 1947 when, in the face of the imminent expiration of the British mandate, the U.N. General Assembly voted to partition Palestine. Rejecting this solution, the Arab nations resolved instead to destroy the state of Israel at birth and gain the whole for themselves. This time, however, Arab violence backfired spectacularly. In the 1948-49 war, not only did Israel confirm its sovereign independence and assert control over somewhat wider territories than those assigned to it by the U.N. partition resolution, but the Palestinian Arab community was profoundly shattered with about half of its population fleeing to other parts of Palestine and to neighboring Arab states.

Preparing for the “Second Round”

For the next two decades, inter-Arab politics would be driven by the determination to undo the consequences of the 1948 defeat, duly dubbed “al-Nakba,” the catastrophe, and to bring about Israel’s demise. Only now, it was Cairo rather than the two Hashemite kings that spearheaded the pan-Arab campaign following Nasser’s rise to power in 1954 and his embarkation on an aggressive pan-Arab policy.

The Egyptian president had nothing but contempt for most members of the “Arab Nation” he sought to unify: “Iraqis are savage, the Lebanese venal and morally degenerate, the Saudis dirty, the Yemenis hopelessly backward and stupid, and the Syrians irresponsible, unreliable and treacherous,” he told one of his confidants. Neither did he have a genuine interest in the Palestinian problem—pan-Arabism’s most celebrated cause: “The Palestinians are useful to the Arab states as they are,” he told a Western journalist in 1956. “We will always see that they do not become too powerful. Can you imagine yet another nation on the shores of the eastern Mediterranean!” Yet having recognized the immense value of this cause for his grandiose ambitions, he endorsed it with a vengeance, especially after the early 1960s when his pan-Arab dreams were in tatters as Syria acrimoniously seceded from its bilateral union with Egypt (1958-61) and the Egyptian army bogged down in an unwinnable civil war in Yemen. “Arab unity or the unity of the Arab action or the unity of the Arab goal is our way to the restoration of Palestine and the restoration of the rights of the people of Palestine,” Nasser argued. “Our path to Palestine will not be covered with a red carpet or with yellow sand. Our path to Palestine will be covered with blood.”

By way of transforming this militant rhetoric into concrete plans, in January 1964, the Egyptian president convened the first all-Arab summit in Cairo to discuss ways and means to confront the “Israeli threat.” A prominent item on the agenda was the adoption of a joint strategy to prevent Israel from using the Jordan River waters to irrigate the barren Negev desert in the south of the country. A no less important decision was to “lay the proper foundations for organizing the Palestinian people and enabling it to fulfill its role in the liberation of its homeland and its self-determination.” Four months later, a gathering of 422 Palestinian activists in East Jerusalem, then under Jordanian rule, established the Palestine Liberation Organization (PLO) and approved its two founding documents: the organization’s basic constitution and the Palestinian National Covenant.

These events made Nasser yet again the undisputed leader of the Arab world, the only person capable of making the Arabs transcend, however temporarily, their self-serving interests for the sake of the collective good. He was nowhere near his cherished goal of promoting the actual unification of the Arab world under his leadership as he had seemingly been in 1958 when Syria agreed to merge with Egypt. Yet he had successfully hijacked pan-Arabism’s most celebrated cause and established a working relationship with his erstwhile enemies in Amman and Riyadh. In a second summit meeting in Alexandria in October 1964, the heads of the Arab states accepted Nasser’s long-term, anti-Israel strategy. This envisaged the laying of the groundwork for the decisive confrontation through the patient buildup of Arab might in all areas—military, economic, social, and political—and the simultaneous weakening of Israel through concrete actions such as the diversion of the Jordan River estuaries. The PLO was authorized to create an army of Palestinian volunteers, to which the Arab governments pledged to give support, and a special fund was established for the reorganization of the Lebanese, Syrian, and Jordanian armies under a united Arab command.

The Slide to War

Before long, this organized pan-Arab drive for Israel’s destruction was disrupted by an unexpected sequence of events that led, within a few weeks, to the third Arab-Israeli war since 1948; and the event that triggered this escalation was a Soviet warning (in early May 1967) of large-scale Israeli troop concentrations along the border with Syria aimed at launching an immediate attack. As pan-Arabism’s standard-bearer, Nasser had no choice but to come to the rescue of a (supposedly) threatened ally tied to Egypt in a bilateral defense treaty since November 1966, especially when the pro-Western regimes in Jordan and Saudi Arabia were openly ridiculing his failure to live up to his high pan-Arab rhetoric. On May 14, the Egyptian armed forces were placed on the highest alert, and two armored divisions began moving into the Sinai Peninsula, formally demilitarized since the 1956 Suez war. That same day, the Egyptian chief of staff, Lt.-Gen. Muhammad Fawzi, arrived in Damascus to get a first-hand impression of the military situation and to coordinate a joint response in the event of an Israeli attack. To his surprise, Fawzi found no trace of Israeli concentrations along the Syrian border or troop movements in northern Israel. He reported these findings to his superiors, but this had no impact on the Egyptian move into Sinai, which continued apace. Fawzi was to recall in his memoirs,

From that point onward, I began to believe that the issue of Israeli concentrations along the Syrian border was not … the only or the main cause of the military deployments which Egypt was undertaking with such haste.

Within less than twenty-four hours, Nasser’s objective had been transformed from the deterrence of an Israeli attack against Syria into an outright challenge to the status quo established after the 1956 war. With Fawzi’s reassuring findings corroborated both by Egyptian military intelligence and by a special U.N. inspection, and the Israelis going out of their way to reassure the Soviets that they had not deployed militarily along their northern border, Nasser must have realized that there was no imminent threat to Syria. He could have halted his troops at that point and claimed a political victory, having deterred an (alleged) Israeli attack against Syria.

But it is precisely here that the Arab-Israeli conflict’s general cause—rejection of Israel’s very existence—combined with the particular causes to make war inevitable as Nasser’s resolute move catapulted him yet again to a position of regional preeminence that he was loath to relinquish. At a stroke, he had managed to undo one of Israel’s foremost gains in the 1956 war—the de facto demilitarization of the Sinai Peninsula—without drawing a serious response from Jerusalem. Now that the Egyptian troops were massing in Sinai, Nasser decided to raise the ante and eliminate another humiliating remnant of that war for which he had repeatedly been castigated by his rivals in the Arab world: the presence of a U.N. Emergency Force (UNEF) on Egyptian (but not on Israeli) territory as a buffer between the two states.

As the U.N. observers were quickly withdrawn and replaced by Egyptian forces, Nasser escalated his activities still further. Addressing Egyptian pilots in Sinai on May 22, he announced the closure of the Strait of Tiran, at the southern mouth of the Gulf of Aqaba, to Israeli and Israel-bound shipping. “The Gulf of Aqaba constitutes our Egyptian territorial waters,” he announced to the cheers of an ecstatic audience. “Under no circumstances will we allow the Israeli flag to pass through the Aqaba Gulf.” The following day the Egyptian mass media broke the news to the entire world.

Did Nasser consider the possibility that his actions might lead to war? All the available evidence suggests that he did. Initially, when he briefly believed in the imminence of an Israeli attack against Syria, he could not have taken for granted that the Egyptian deployment in Sinai would have deterred such an action, in which case he would have been forced to come to Syria’s defense. Moreover, the demilitarization of Sinai was seen by Israel as vital to its national security, which made its violation a legitimate casus belli. But then, Nasser was being rapidly entrapped by his imperialist ambitions. He began deploying his troops in Sinai out of fear that failure to do so would damage his pan-Arab position beyond repair. He continued to escalate his activities, knowing full well that there was no threat of an Israeli attack against Syria, because of his conviction that the continuation of the crisis boosted his pan-Arab standing.

It is true that the lack of a prompt and decisive Israeli response to the Egyptian challenge, together with the quick realization that there were no Israeli concentrations along the Syrian border, might have convinced Nasser that the risks were not so great and that war was not inevitable. Yet, when he decided to remove UNEF and to close the Strait of Tiran, Nasser undoubtedly knew that he was crossing the threshold from peace to war. “Now with our concentrations in Sinai, the chances of war are fifty-fifty,” he told his cabinet on May 21, during a discussion on the possible consequences of a naval blockade. “But if we close the Strait, war will be a 100 percent certainty.” “We all knew that our armaments were adequate—indeed, infinitely better than in the October 1973 War,” recalled Anwar Sadat, who participated in that crucial meeting:

When Nasser asked us our opinion, we were all agreed that the Strait should be closed—except for [Prime Minister] Sidqi Sulayman, who pleaded with Nasser to show more patience … [But] Nasser paid no attention to Sulayman’s objections. He was eager to close the Strait so as to put an end to the Arab maneuverings and maintain his great prestige within the Arab world.

The die was cast. Having maneuvered himself yet again into the driver’s seat of inter-Arab politics, Nasser could not climb down without risking a tremendous loss of face. He was approaching the brink with open eyes, and if there was no way out of the crisis other than war, so be it: Egypt was prepared. Daily consultations between the political and the military leaderships were held. The Egyptian forces in Sinai were assigned their operational tasks. In a widely publicized article in al-Ahram on May 26, the newspaper’s editor-in-chief, Nasser’s mouthpiece, Muhammad Hassanein Heikal, explained why war between Egypt and Israel was inevitable. A week later, at a meeting with the armed forces’ supreme command, Nasser predicted an Israeli strike against Egypt within forty-eight to seventy-two hours at the latest.

The coming of war is seldom a happy occasion. It is often fraught with misgivings and apprehensions. But if doubts assailed Nasser’s peace of mind, he gave them no public expression. The Egyptian war preparations were carried out in a confident and ever-extravagant fashion, in front of the watching eyes of the world media. The closer Nasser came to the brink, the more aggressive he became. “The Jews have threatened war,” he gloated in his May 22 speech, “We tell them: You are welcome; we are ready for war.” Four days later, he took a big step forward, announcing that if hostilities were to break out, “our main objective will be the destruction of Israel.” “Now that we have the situation as it was before 1956,” Nasser proclaimed on another occasion, “Allah will certainly help us to restore the status quo of before 1948.”

Once again imperialist pan-Arab winds were blowing. “This is the real rising of the Arab nation,” Nasser boasted while the few skeptics within the Egyptian leadership were being rapidly converted to belief in victory over Israel. In the representative words of Naguib Mahfouz, Egypt’s foremost writer and winner of the 1988 Nobel Prize:

When Nasser held his famous press conference, before the June 1967 war, and spoke with confident pomp, I took our victory over Israel for granted. I envisaged it as a simple journey to Tel Aviv, of hours or days at the most, since I was convinced we were the greatest military power in the Middle East.

By this time, the conflict was no longer about the presence of U.N. forces on Egyptian soil or freedom of navigation in the Gulf of Aqaba, let alone the alleged Israeli threat to Syria. It had been transformed into a jihad to eradicate the foremost “remnant of Western imperialism” in the Middle East. “During the crusaders’ occupation, the Arabs waited seventy years before a suitable opportunity arose, and they drove away the crusaders,” Nasser echoed Azzam’s 1947 rhetoric, styling himself as the new Saladin: “[R]ecently we felt that we are strong enough, that if we were to enter a battle with Israel, with God’s help, we could triumph.”

Nasser’s militancy was contagious. The irritating chorus of criticism had fallen silent. His former Arab rivals were standing in line to rally behind his banner. On the morning of May 30, Jordan’s King Hussein, who at the beginning of the crisis still mocked Nasser for “hiding behind UNEF’s apron,” arrived in Cairo where he immediately signed a defense pact with Egypt. He returned to Amman later that day accompanied by Ahmad Shuqeiri, head of the PLO and hitherto one of the king’s archenemies. The following day, an Egyptian general arrived in Amman to command the eastern front in the event of war. On June 4, Iraq followed suit by entering into a defense agreement with Egypt, and Nasser informed King Hussein that their pact now included Iraq as well. By this time, Arab expeditionary forces—including an Iraqi armored division, a Saudi and a Syrian brigade, and two Egyptian commando battalions—were making their way to Jordan. The balance of forces, so it seemed to the Arabs, had irreversibly shifted in their favor. The moment of reckoning with the “Zionist entity,” as they pejoratively called Israel, had come. “Have your authorities considered all the factors involved and the consequences of the withdrawal of UNEF?” the commander of the U.N. force, Gen. Indar Jit Rikhye, asked the Egyptian officers bearing the official demand. “Oh yes sir! We have arrived at this decision after much deliberation, and we are prepared for anything. If there is war, we shall next meet at Tel Aviv.” The Iraqi president Abdel Rahman Aref was no less forthright. “This is the day of the battle,” he told the Iraqi forces leaving for Jordan. “We are determined and united to achieve our clear aim—to remove Israel from the map. We shall, Allah willing, meet in Tel Aviv and Haifa.”

The Non-Accidental War

Yet for all his militant zeal, Nasser had weighty reasons to forgo a first strike at this particular time. His war preparations had not been completed: The Egyptian forces in Sinai were still digging in; the Arab expeditionary forces to Jordan had not yet been fully deployed, and coordination of the operational plans of the Arab military coalition required more time. Nasser also feared that an Egyptian attack would trigger a U.S. military response that might neutralize the new Arab political and military superiority over Israel, which had been gained by the most remarkable demonstration of pan-Arab unity since the 1948 war.

Nasser’s fears of U.S. intervention were compounded by the nature of the Egyptian operational plan, which envisaged deep thrusts into Israel’s territory. An armored division was to break out of the Gaza Strip and capture border villages inside Israel while another armored division was to cut off the southern Negev from the rest of Israel, thereby achieving the long-standing Egyptian objective of establishing a land bridge with Jordan. Given Nasser’s belief in the U.S. commitment to Israel’s territorial integrity, such plans could hardly be implemented if Egypt were to take the military initiative. Their execution as an act of self-defense in response to an Israeli attack was a completely different matter, however.

This explains Nasser’s readiness to play the political card, such as his decision to send Vice-President Zakaria Muhieddin to Washington on June 7. He had no intention whatever to give ground, and the move was aimed at cornering Israel and making it more vulnerable to Arab pressure and, eventually, war. Robert Anderson, a special U.S. envoy sent to Egypt to defuse the crisis, reported to President Lyndon Johnson that Nasser showed no sign of backing down and spoke confidently of the outcome of a conflict with Israel.

Anderson was not the only person to have heard this upbeat assessment. Nasser’s belief in Egypt’s ability to absorb an Israeli strike and still win the war was widely shared by the Egyptian military and was readily expressed to the other members of the Arab military coalition. In his May 30 visit to Cairo, King Hussein was assured by Nasser of Egypt’s full preparedness against an Israeli air strike: No more than 15-20 percent losses would be incurred before the Egyptian air force dealt a devastating blow to Israel. The other members of the Jordanian delegation heard equally confident words from Abdel Hakim Amer, Nasser’s deputy and commander of the Egyptian armed forces. When the Egyptian foreign minister Mahmoud Riad asked Amer about the armed forces’ state of readiness, he was told that “if Israel actually carried out any military action against us, I could, with only one third of our forces, reach Beersheba.”

The most eloquent public exposition of this euphoric state of mind was provided by Heikal’s May 26 al-Ahram article on the inevitability of war. “Egypt has exercised its power and achieved the objectives of this stage without resorting to arms so far,” he wrote:

Israel has no alternative but to use arms if it wants to exercise power. This means that the logic of the fearful confrontation now taking place between Egypt, fortified by the might of the masses of the Arab nation, and Israel, bolstered by the illusion of American might, dictates that Egypt, after all it has now succeeded in achieving, must wait, even though it has to wait for a blow. This is necessitated also by the sound conduct of the battle, particularly from an international point of view. Let Israel begin. Let our second blow then be ready. Let it be a knockout.

As it were, the war that broke out on June 5 was not quite the knockout that Heikal had in mind. Instead of dealing Israel a mortal blow, the Egyptians saw their air force destroyed on the ground within three hours of the outbreak of hostilities and their army crushed and expelled from Sinai over the next three days. As Syria, Jordan, and Iraq attacked Israel, their armies were similarly routed. By the time the war was over, after merely six days of fighting, Israel had extended its control over vast Arab territories about five times its own size, from the Suez Canal, to the Jordan River, to the Golan Heights.

Small wonder that Nasser would doggedly shrug off responsibility for the defeat by feigning victimhood and emphatically denying any intention to attack Israel. This claim was quickly endorsed by numerous Western apologists eager to absolve him of any culpability for the war, in what was to become the standard Arab and Western historiography of the conflict. Some went so far in the attempt to exculpate Nasser as to portray him as a mindless creature thriving on hollow rhetoric and malleable in the extreme:

… retired members of the old Revolutionary Command Council wander in and out of meetings and give their opinions; Nasser butts in and nobody pays much attention to him; he takes journalists seriously and revises his intelligence estimate on the basis of their remarks; he is influenced by the casual conversation of diplomats.

Aside from doing a great injustice to Nasser—the charismatic dictator who had heavy-handedly ruled Egypt for over a decade and mesmerized tens of millions throughout the Arabic-speaking world—this description has little basis in reality. As evidenced both by Nasser’s escalatory behavior during the crisis and by captured military documents revealing elaborate plans for an invasion of Israel, the Egyptian president did not stumble into war but orchestrated it with open eyes. He steadily raised his sights in accordance with the vicissitudes in the crisis until he set them on the ultimate pan-Arab objective: the decisive defeat of Israel and, if possible, its destruction.


The June 1967 war was a direct corollary of pan-Arabism’s delusions of grandeur, triggered by the foremost champion of this ideology and directed against its foremost nemesis. It was the second all-out attempt in a generation to abort the Jewish national revival, and it ended in an even greater ignominy than its 1948 precursor. Then, only half of Palestine had been lost. Now the land was lost in its entirety, together with Egyptian and Syrian territories. In 1948, the dividing line between victor and vanquished was often blurred as the war dragged on intermittently for over a year. In 1967, owing to the war’s swift and decisive nature, there was no doubt as to which side was the victor.

The magnitude of the defeat thus punctured the pan-Arab bubble of denial and suggested to the Arabs that military force had its limits. If the 1967 war was fought with a view to destroying Israel, the next war, in October 1973, launched by Nasser’s successor Anwar Sadat, had the far narrower objective of triggering a political process that would allow Egypt to regain the territories lost in 1967. Israel’s remarkable military recovery in October 1973 after having been caught off-guard further reinforced Sadat’s determination to abandon pan-Arabism’s most celebrated cause and culminated in the Egyptian-Israeli peace treaty of March 1979.

While one can only speculate about Sadat’s ultimate intentions (he was assassinated in October 1981 by an Islamist zealot), there is little doubt that his successor, Hosni Mubarak, viewed peace not as a value in and of itself but as the price Egypt had to pay for such substantial benefits as increased U.S. economic and military aid. So did the Palestine Liberation Organization (PLO), which perceived its 1990s peace agreements with Israel as a pathway not to a two-state solution—Israel alongside a Palestinian state in the West Bank and Gaza living side-by-side in peace—but to the subversion of the state of Israel.

In Arab eyes, then, with the partial exception perhaps of Jordan’s King Hussein, contractual peace with Israel has represented not a recognition of legitimacy but a tacit admission that, at least for the time being, the Jewish state cannot be defeated by force of arms. And while militant pan-Arabism is unlikely to regain its pre-1967 dominance in the foreseeable future due to the ravages of the recent Arab upheavals, the advent of a new generation of Palestinians and Arabs for whom the 1967 defeat is but a dim memory, one more historical injustice that has to be redressed by any means necessary, makes the prospects of Arab-Israeli reconciliation as remote as ever.

Prof. Efraim Karsh is Director of the Begin-Sadat Center for Strategic Studies.

The Six-Day War: An Inevitable Conflict