A United Nations conference in Geneva adopted the Convention Relating to the Status of Refugees, drafted in the aftermath of World War II's displacement crisis to define who qualifies as a refugee and to bind signatory states against forcibly returning them to danger. Though originally limited to people displaced by events before 1951 and largely focused on Europe, a 1967 Protocol removed those limits, making the treaty the cornerstone of modern international refugee law.
The negotiators who gathered in Geneva were haunted by very recent memory: millions of Europeans left stateless or displaced by Nazi persecution and the war's chaos, many still languishing in displaced persons camps six years after Germany's surrender. The convention they produced defined a refugee, in the careful language of international law, as someone with a 'well-founded fear of being persecuted' for reasons of race, religion, nationality, political opinion, or membership in a particular social group.
The treaty's most consequential provision was Article 33, the principle of non-refoulement, prohibiting states from returning refugees to countries where they would face persecution. It was a direct rebuke to the era's failures, most infamously the 1939 voyage of the MS St. Louis, turned away from Cuba, the United States, and Canada, forcing many of its Jewish passengers back to Europe and death.
The original convention applied only to people displaced by events occurring before January 1, 1951, largely a European-focused compromise reflecting Cold War politics and the reluctance of states to accept open-ended obligations. The 1967 Protocol stripped away those temporal and geographic limits, transforming a narrow postwar instrument into a truly global framework. Today, 149 countries are parties to one or both instruments, though enforcement remains inconsistent and refugee crises from Syria to Myanmar to Venezuela have tested the convention's durability.