The United States played an active role in drafting the 1948 Genocide Convention and signed it that same year. Yet ratification, the step that makes a treaty binding under United States law, took decades. The story of how the United States finally implemented the Convention is closely tied to the persistence of one senator and to a broader reckoning with how the law applies at home.
A long road to ratification
Although President Harry Truman submitted the Genocide Convention to the Senate in 1949, it remained there for many years amid concerns raised by some lawmakers about sovereignty and legal implications. Senator William Proxmire of Wisconsin made ratification a personal cause. Beginning in 1967, he delivered a speech in support of the Convention on nearly every day the Senate was in session, continuing for years. His sustained advocacy kept the issue alive.
The Senate finally gave its advice and consent to ratification in 1986. Ratification alone, however, was not enough to make the Convention fully operative in United States courts. Congress still needed to pass legislation defining the crime of genocide under domestic law and setting penalties for it.
The Genocide Convention Implementation Act
That legislation became the Genocide Convention Implementation Act of 1987, commonly known as the Proxmire Act in recognition of the senator long effort. It was enacted in 1988. The Act wrote the crime of genocide into United States federal law, tracking the definition in the 1948 Convention: certain acts committed with the specific intent to destroy, in whole or in substantial part, a national, ethnic, racial, or religious group.
With this law, the United States at last had domestic legal machinery to prosecute genocide, aligning its statutes with the international obligation it had accepted decades earlier. Later legislation refined and expanded these provisions, but the 1987 Act remains the foundational step.
Why this matters for Native history
For many Native people and scholars, the long delay in United States ratification carried a particular resonance. The historical harms suffered by Indigenous nations, including removal, warfare, the destruction of the buffalo, boarding-school policies, and the loss of land, form part of the wider history against which conversations about genocide take place. Placing that history alongside the development of genocide law invites careful, sober reflection rather than simple conclusions.
Understanding how and when the United States implemented the Genocide Convention helps clarify both the reach and the limits of the law. It also underscores why honest engagement with the past matters. For related reading, see our article on the definition of genocide and historical harms and on what broken treaties teach, or browse the lessons from history category.
Leave a Reply