The Forgotten Catalyst: How Black September Still Shapes Middle Eastern Politics Today

The violent suppression of Palestinian militants in Jordan over 50 years ago continues to cast a shadow over regional stability and peace efforts in ways few policymakers acknowledge.

The Historical Powder Keg

The events of Black September in 1970 represent one of the most pivotal yet underexamined moments in modern Middle Eastern history. Following the 1967 Six-Day War, hundreds of thousands of Palestinian refugees flooded into Jordan, where armed Palestinian groups established a state-within-a-state. By 1970, these groups controlled large swaths of Jordanian territory and openly challenged King Hussein’s authority, creating what many observers called a dual power structure that threatened the Hashemite monarchy’s very survival.

The crisis reached its breaking point when Palestinian militants hijacked multiple international aircraft and brought them to Jordan, prompting global outrage and forcing King Hussein’s hand. What followed was a brutal military crackdown that killed thousands of Palestinians and fundamentally altered the trajectory of the Palestinian liberation movement. The Palestine Liberation Organization and other armed groups were expelled from Jordan, relocating to Lebanon where they would later contribute to that country’s devastating civil war.

The Ripple Effects Across Decades

The expulsion of Palestinian armed groups from Jordan created a domino effect that reshaped the entire region’s political landscape. In Lebanon, the arrival of Palestinian militants upset the country’s delicate sectarian balance and contributed directly to the 1975-1990 civil war. The Black September Organization, formed in response to the Jordanian crackdown, carried out the 1972 Munich Olympics massacre, bringing Palestinian militancy to the global stage in unprecedented ways.

More significantly, Black September marked a turning point in Arab-Palestinian relations. The willingness of an Arab state to use massive military force against Palestinian groups shattered the myth of pan-Arab unity and forced Palestinian leaders to reconsider their strategy of using Arab states as bases for operations against Israel. This betrayal narrative continues to influence Palestinian political consciousness and their relationships with Arab governments to this day.

Contemporary Implications for Peace and Policy

Understanding Black September is crucial for contemporary policymakers attempting to navigate Middle Eastern politics. The event established precedents that continue to shape regional dynamics: Arab states’ wariness of Palestinian armed presence, the Palestinian movement’s deep mistrust of Arab regimes, and Jordan’s particularly complex relationship with its Palestinian-majority population. These historical tensions surface repeatedly in modern diplomatic efforts, from the Abraham Accords to ongoing Israeli-Palestinian negotiations.

The legacy of Black September also helps explain why Jordan, despite its Palestinian majority, has maintained relative stability while serving as a crucial intermediary in peace processes. The kingdom learned hard lessons about balancing Palestinian aspirations with state sovereignty—lessons that inform its careful diplomatic positioning today. Similarly, Palestinian leaders’ emphasis on maintaining their own security forces in any future state arrangement stems partly from the traumatic memory of being at the mercy of host countries’ armies.

The Unlearned Lessons

Perhaps most troublingly, the international community’s response to Black September—largely turning a blind eye to the massive loss of Palestinian civilian life in favor of maintaining regional stability—established a pattern that would repeat in Lebanon, Syria, and elsewhere. This prioritization of state stability over Palestinian lives continues to influence how global powers approach Palestinian issues, often viewing them primarily through the lens of regional security rather than human rights or self-determination.

As current policymakers grapple with questions of Palestinian statehood, refugee rights, and regional stability, they would do well to study the lessons of Black September more carefully. Can there be lasting peace in the Middle East without honestly confronting the historical traumas that continue to shape Palestinian and Arab consciousness, or will the ghosts of September 1970 forever haunt attempts at reconciliation?