Seventy years ago, on October 29, 1956, the Suez Crisis reached a turning point when Israel launched an offensive in the Sinai Peninsula, advancing toward the Suez Canal. The conflict had begun in July of that year after Egypt’s President Gamal Abdel Nasser nationalized the Suez Canal Company, in which Britain and France held majority shares. On November 5, Britain and France joined the military action against Egypt, officially to separate the combatants but with the underlying goal of regaining control over the canal zone and facilitating regime change. However, the operation was abruptly halted the following day due to strong opposition from the United States and financial pressure on the British pound.

The crisis marked a significant shift in global power dynamics, effectively ending Britain’s status as a major world power and diminishing its influence in the Middle East. German Chancellor Konrad Adenauer reportedly likened Britain to “an old man who had lost all his property but did not realize it.” Beyond this geopolitical setback, the Suez Crisis also contributed to a prolonged estrangement between Britain and France, influencing their subsequent European policies and relations.

Initially, the crisis seemed to offer a chance for unprecedented Anglo-French unity. In 1956, French Prime Minister Guy Mollet proposed reviving a 1940 plan for common institutions and citizenship between the two countries. Remarkably, he suggested that France could "accept the headship of Her Majesty" or alternatively join the British Commonwealth if full union was not feasible. British Prime Minister Anthony Eden showed sympathy toward closer ties, viewing such a partnership as a way to strengthen both nations. However, this proposal was ultimately rejected by officials, with Cabinet Secretary Sir Norman Brook arguing that Britain’s economy was not robust enough to support France—an assertion seen by some as ironic given the economic realities of that period.

Following the crisis, the two countries diverged in their interpretations and responses. Britain, under Eden’s successor Harold Macmillan, acknowledged the failure and moved closer to the United States, with Macmillan infamously suggesting Britain could play a subordinate role to America. In contrast, France maintained that the intervention had been justified and looked toward Germany and broader European integration as the path forward. On the day of the ceasefire, Chancellor Adenauer reportedly told Mollet that Europe’s only chance to assert itself globally was through unification, a process from which he believed Britain was not yet ready to partake.

Former French President Charles de Gaulle, who had supported the Suez operation while out of power, later sought to limit Britain’s influence within Europe by vetoing its applications to join the European Community in 1963 and 1967. He expressed skepticism over Britain’s commitment to Europe, famously remarking on England’s insularity and America’s non-European identity. De Gaulle’s fear was that Europe’s fate might be decided by external powers such as the United States and Russia without the continent’s meaningful involvement—a concern noted in relation to contemporary geopolitical developments, including the conflict in Ukraine.

However, de Gaulle did not address how a strong and independent Europe could emerge without Britain's participation, particularly given that Britain and France are the continent’s sole nuclear powers. Subsequent French leadership has followed a similar approach, often marginalizing Britain’s role in European affairs. Since the United Kingdom’s departure from the European Union, the formulation of European defense policy has become more complex, likely requiring coordination beyond EU structures.

In recent developments, UK Prime Minister Andy Burnham has called for a renewed dialogue about Europe, emphasizing the importance of closer economic ties and alignment in foreign and defense policies. He also stressed the need for cooperative efforts to uphold liberal democratic values in the face of challenges from both the extreme right and left across the continent.

Reflecting on the legacy of the Suez Crisis, analysts suggest it was not only a failed imperial episode but also a key moment that shaped the often fraught relationship between Britain and France. Many argue that overcoming this historical rift is essential for the future stability and unity of Europe and for addressing shared geopolitical challenges.