Suez Crisis Protocol of Sèvres (October 22–24, 1956)

Introduction

In late October 1956, British, French, and Israeli representatives gathered at a villa in Sèvres, outside Paris, for three days of secret meetings. What emerged from those meetings was a written protocol — signed by the principals — that set out a predetermined scenario for the military seizure of the Suez Canal from Egypt. For decades, British officials denied that any such collusion had occurred. The documentary evidence proving it existed has now been public for nearly thirty years.

The Background: Nasser and the Canal

In July 1956, Egyptian President Gamal Abdel Nasser nationalised the Suez Canal Company, which had been jointly owned by British and French shareholders. The move was legal under Egyptian law but represented a profound political humiliation for Britain and France, which had treated the Canal as a vital imperial artery. Israel had its own grievances: Nasser had closed the Straits of Tiran to Israeli shipping and was supporting Palestinian fedayeen raids.

British Prime Minister Anthony Eden became consumed with removing Nasser, comparing him to Hitler in private correspondence. France, simultaneously fighting an Algerian insurgency it attributed partly to Egyptian support, was equally motivated. The stage was set for a conspiracy that would involve the highest levels of three governments.

The Sèvres Meetings

The key participants at Sèvres included, on the British side, Foreign Secretary Selwyn Lloyd (later replaced by Patrick Dean, a Foreign Office official); on the French side, Prime Minister Guy Mollet and Foreign Minister Christian Pineau; and on the Israeli side, Prime Minister David Ben-Gurion, Defence Minister Shimon Peres, and Chief of Staff Moshe Dayan.

The protocol they agreed was a staged performance. Israel would attack Egypt on 29 October 1956. Britain and France would then issue an ultimatum to both Israel and Egypt to withdraw from the Canal Zone. Egypt, being asked to withdraw from its own territory to a line 16 kilometres east of the Canal, would inevitably reject this. Britain and France would then launch their own military intervention, ostensibly to "separate the combatants" and protect the Canal — while in reality executing a pre-planned military operation to reassert control over it.

The document was signed. Eden, reportedly deeply uncomfortable with the written record of collusion, ordered the British copy destroyed. He later denied in the House of Commons that any foreknowledge of Israeli military action existed — a statement that was flatly false.

The Operation and Its Collapse

Israel invaded Sinai on 29 October as agreed. Britain and France issued the planned ultimatum on 30 October. Egypt rejected it. Anglo-French bombing of Egyptian airfields began on 31 October; a parachute drop on Port Said followed on 5 November.

The operation collapsed almost immediately under international pressure. US President Dwight Eisenhower, furious at not having been informed and alarmed at Soviet threats to intervene, applied decisive economic pressure on Britain — threatening to withhold IMF support for the pound at a moment of currency crisis. The UN General Assembly passed Resolution 1001 demanding a ceasefire. British and French forces withdrew by December 1956. Eden resigned on 9 January 1957, citing ill health, in what was universally understood as a political resignation.

Declassification and Historical Confirmation

The British government maintained official denial of collusion for decades. The Israeli copy of the Protocol of Sèvres was declassified by the Israeli State Archives in 1996 and subsequently published and analysed by historian Avi Shlaim in his 2000 work The Iron Wall: Israel and the Arab World. French copies were also found in French archives. The protocol is now a primary source document in Cold War history.

The Suez collusion is taught as established fact in British, French, and Israeli history curricula. Eden's Commons statements are recorded instances of a serving British Prime Minister lying to Parliament about an act of war.

What Would Change Our Verdict

Nothing would change the verdict — the documentation is complete. The Protocol is a primary source; the historiography is settled.

The Sèvres Mechanism: Engineering a Pretext

The design agreed at Sèvres was not simply "Israel attacks, then Britain and France invade" — it was a legal fiction built to survive scrutiny at the United Nations. Because the UN Charter barred unprovoked aggression, London and Paris needed to appear as neutral peacekeepers rather than belligerents reclaiming a nationalised asset. The solution was to manufacture a pretext for exactly the kind of "police action" the Charter permitted: separating two warring parties. That only worked if a war existed to separate — hence Israel's scripted attack.

The finished document ran to seven clauses. It specified that Israel would attack across Sinai toward the Canal on 29 October; that Britain and France would then call on both Egypt and Israel to withdraw ten miles from the waterway; that Israel would comply (having pre-agreed to do so) while Egypt, being asked to vacate its own sovereign territory and its own canal, would certainly refuse; and that Anglo-French forces would then occupy the Canal Zone "to protect it." A separate clause permitted Israeli forces to occupy the Straits of Tiran and Sharm el-Sheikh, addressing Israel's actual war aim of reopening the blockaded route to Eilat. Selwyn Lloyd led the British negotiating team at Sèvres, but it was his deputy, Foreign Office official Patrick Dean, who signed the final text alongside Ben-Gurion and Pineau — Lloyd apparently unwilling to put his own signature to the document.

The Paper Trail: Protocol, Testimony, and the Missing Copy

Each delegation left Sèvres with its own French-language copy, at Israel's insistence — Ben-Gurion did not want Israel left exposed mid-invasion by allies who could later deny the deal ever existed. That precaution proved justified. Eden ordered the British copy destroyed almost immediately after signature; Patrick Dean was sent back to Paris to retrieve and destroy the other copies too, but Pineau at the Quai d'Orsay refused to hand his over, and the Israeli delegation had already left French soil with theirs.

France's copy did not resurface until 2002, when Pineau's widow found it among his papers after his death; images were not published until 2010. Israel's copy survived intact in the Ben-Gurion Archives at Sde Boker, where it was cited by Moshe Dayan in his 1966 memoirs and Pineau himself gave a fuller account in his 1976 book Suez/1956. Notably, both British and French governments quietly signalled no objection when the BBC — marking the invasion's fortieth anniversary — asked Israel's Ben-Gurion Archives for a photocopy in 1996; Shimon Peres, by then aging but still politically active, personally authorised the release after protracted negotiations. That photocopy, alongside the Israeli State Archives' formal 1996 declassification, gave Avi Shlaim the primary-source basis for his 1997 journal article and 2000 book.

Concealment: Eden's Denials in the Commons

Parliament pressed the government almost from the moment the ultimatum was issued. On 6 December 1956, Labour's Philip Noel-Baker confronted Chancellor Harold Macmillan with a Le Monde report alleging advance coordination, warning that the government's evasive phrasing would lead "the world" to conclude "the charge is true." Ministers declined to answer the foreknowledge question directly.

Eden closed the matter himself on 20 December 1956, in what proved his last major Commons appearance as Prime Minister. Pressed on whether Britain had known Israel would attack, he stated flatly: "there was no foreknowledge that Israel would attack Egypt," and of the broader charge — "to say that Her Majesty's Government were engaged in some dishonourable conspiracy is completely untrue, and I most emphatically deny it." Watching from the officials' box was Sir Donald Logan, Selwyn Lloyd's private secretary and the only British official present at both Sèvres sessions — the one man in the chamber who knew, first-hand, that the denial was false.

Aftermath: Sanctions, Withdrawal, and Eden's Fall

The military and financial pressure that followed the ceasefire fell unevenly. British and French troops withdrew from Egyptian territory by December 1956 under the weight of the sterling crisis and UN Emergency Force deployment. Israel proved far more reluctant to give up Sinai and Gaza, which Ben-Gurion had hoped to annex outright. It took a second round of American pressure — a UN General Assembly resolution on 2 February 1957 "deploring" the continued occupation, an Eisenhower ultimatum-by-letter to Ben-Gurion on 11 February, and an explicit threat to cut off roughly $100 million a year in private US assistance to Israel — before Israeli forces completed their withdrawal on 16 March 1957.

Eden resigned on 9 January 1957, formally on doctors' orders, but the timing — barely a month after his flat Commons denial — left little doubt among contemporaries that the political damage from the still-unproven collusion charge was inseparable from his departure. As Christopher Moran's 2019 peer-reviewed history in the English Historical Review documents, official secrecy around Sèvres did not hold for long even without a formal declassification: Dayan's 1966 memoir and Pineau's 1976 account both described the substance of the deal decades before Israel's 1996 archival release, eroding the government's position long before historians could cite a signed document.

What the Evidence Does — and Doesn't — Establish

The documentary record settles the core fact of Anglo-French-Israeli collusion beyond dispute, but two adjacent claims sometimes attached to the story are not supported by the same evidence. First, Washington was not a party to the plan — the opposite is true. Eisenhower and the State Department were deliberately kept uninformed, and US officials only learned the operation's real shape as it unfolded; the resulting rupture in US-UK relations, and the American financial pressure that forced both withdrawals, are difficult to square with any theory of US complicity. Second, Israel was not a passive instrument executing Anglo-French orders. Ben-Gurion extracted specific concessions at Sèvres — the Straits of Tiran clause above all — that served Israel's own security aims independent of Britain and France's Canal dispute, a distinction Shlaim's research treats as central to understanding why Israel agreed to a plan that made it the public aggressor of record while its European partners cast themselves as peacekeepers.