The question of whether treaties concluded between Indigenous nations and colonial or settler-state governments are valid, binding, and legitimate instruments of international law is among the most consequential disputes in the legal and political history of colonization. The disagreement is not merely academic: the legal status accorded to historical treaties continues to shape land claims, resource rights, jurisdictional authority, and the relationship between Indigenous nations and the states that now exercise control over their traditional territories.

The dispute arises from several entangled questions. Were Indigenous nations, at the time treaties were signed, the kind of sovereign political entities capable of entering binding international agreements? Were treaty negotiations conducted with the consent, understanding, and authority required to make an agreement valid under either Indigenous or European legal traditions? Did subsequent unilateral actions by colonial or national governments-including non-performance, reinterpretation, or formal abrogation-nullify the original agreements, or do treaties retain binding force regardless of how signatory states have behaved since? And what legal doctrines, including the doctrine of discovery and concepts of domestic versus international law, properly govern how these agreements should be interpreted today?

These questions are contested among historians, legal scholars, Indigenous governments, and national courts, with positions ranging from full recognition of treaties as binding international compacts to views that many treaties were never validly formed or have been lawfully superseded by subsequent sovereign authority.

Advocates of this position argue that many Indigenous nations possessed the attributes of sovereignty recognized under the law of nations at the time treaties were negotiated: organized governance structures, defined territories, the capacity to make war and peace, and the practice of diplomacy with other polities, including European powers. On this view, when colonial and later national governments entered into treaties with Indigenous nations, they did so precisely because they recognized-explicitly or implicitly-that these were agreements between sovereigns, not grants from a sovereign to a subject population. The very act of treaty-making, proponents argue, constituted recognition of Indigenous political authority, since one does not need to negotiate a treaty with an entity one already owns or controls.

Supporters of this view point to language in treaties themselves, which frequently used the vocabulary of nation-to-nation relations-covenants, alliances, and mutual obligations-rather than the language of surrender or domestic regulation. They argue that the proper framework for evaluating these agreements is international law and Indigenous legal traditions current at the time, not the domestic law later imposed by the same governments that were party to the agreements. Under this framework, treaties remain valid until lawfully terminated by both parties or until their terms are fulfilled, and unilateral abrogation, non-performance, or reinterpretation by one signatory does not extinguish the other party's underlying rights. Many adherents of this view connect it to a broader rejection of the doctrine of discovery and related concepts such as terra nullius, treating these doctrines as ex post facto justifications for revoking deals already struck rather than as valid legal bases in the first place.¹⁾ See indigenous-treaty-validity-sovereign-nations-viewpoint.

Others argue that whatever recognition treaties extended to Indigenous nations at the time of signing, the subsequent and lawful assertion of sovereignty by colonial and national governments placed those agreements within a domestic legal framework rather than an international one. On this view, courts in settler states have consistently held that Indigenous nations, once incorporated within the territorial reach of a recognized sovereign, possess a domestic or quasi-sovereign status rather than full international personality, meaning their treaties function more like internal compacts subject to subsequent legislation than like treaties between fully independent states.²⁾

Proponents of this position note that many legal systems have historically treated the power to make and unmake Indigenous treaty obligations as residing in the legislature or executive of the governing state, with courts deferring to that authority except where specific procedural or constitutional protections apply. They argue this is not a moral judgment about whether such arrangements were just, but a description of how sovereignty and legal authority actually came to be allocated as colonization proceeded and was subsequently entrenched in domestic constitutional orders, international recognition, and the practical exercise of governance over the relevant territory for centuries.³⁾ Under this view, the legitimacy and binding character of historic treaties today depends substantially on how each domestic legal system has chosen to incorporate, codify, reinterpret, or override the original agreements through subsequent statute, constitutional provision, or judicial decision-and these choices, however contested, are themselves part of a now-settled legal order rather than ongoing violations of it. See indigenous-treaty-validity-domestic-sovereignty-viewpoint.

A further position holds that the validity of many specific treaties is independently questionable because of defects in how they were negotiated, regardless of one's view on the broader sovereignty question. Advocates of this position point to documented instances of negotiations conducted without authorized representation of all relevant Indigenous communities, translation failures and linguistic ambiguity between the negotiated terms and the written instrument, coercion arising from military pressure, dependency, or scarcity at the time of signing, and discrepancies between oral understandings reached at treaty councils and the text later recorded by colonial or government scribes.

Under this view, ordinary contract and treaty principles-requiring informed consent, capacity, and absence of duress-would render many such agreements void or voidable even if one accepts that the signatories possessed full sovereign capacity. Some advocates of this position argue this strengthens, rather than weakens, Indigenous claims, since governments cannot rely on defectively formed agreements to extinguish rights while also disclaiming responsibility for the agreements' substantive terms; others use the same defects to argue that no clear, enforceable obligation was ever actually created.⁴⁾ See indigenous-treaty-validity-formation-defects-viewpoint.

A distinct position, prominent in some national contexts, holds that treaties should be understood neither as simple grants of land nor as fully extinguished historical curiosities, but as ongoing compacts intended to reconcile two coexisting sovereignties whose relationship continues to require active negotiation. On this view, the relevant legal question is not solely whether a treaty was validly formed in the past, but how its underlying purpose-structuring a continuing relationship between Indigenous and state authority-ought to be given effect in the present, including through new agreements, modern treaties, or negotiated settlements that supplement or reinterpret historical instruments.

Proponents of this approach often draw on judicial language describing treaties as instruments meant to reconcile pre-existing Indigenous sovereignty with asserted state sovereignty, treating this reconciliation as an unfinished project rather than a settled matter resolved entirely by either the original text or subsequent state action alone.^{5) 6)} See indigenous-treaty-validity-living-agreement-viewpoint.

Across these positions, there is broad agreement that historical treaties between Indigenous nations and colonial or national governments were frequently not performed by signatory governments as written, and that this non-performance has had lasting material consequences for Indigenous communities. There is likewise general agreement that treaty texts and the oral understandings reached during their negotiation have, in numerous documented cases, diverged from one another. Commentators across positions also generally agree that the legal doctrines historically invoked to justify the unilateral abrogation or reinterpretation of treaties-including the doctrine of discovery-originated in religious and political assumptions about the relative status of European and non-European peoples that are no longer considered defensible premises for legal reasoning, even where there is disagreement about what follows from that conclusion for present-day treaty validity.⁷⁾

• Main Topic: indigenous-treaty-validity
• Viewpoints: indigenous-treaty-validity-sovereign-nations-viewpoint, indigenous-treaty-validity-domestic-sovereignty-viewpoint, indigenous-treaty-validity-formation-defects-viewpoint, indigenous-treaty-validity-living-agreement-viewpoint
• History: indigenous-treaty-validity-history
• Consensus: indigenous-treaty-validity-consensus

1. Johnson v. McIntosh, 21 U.S. (8 Wheat.) 543 (1823).
2. City of Sherrill v. Oneida Indian Nation of New York, 544 U.S. 197 (2005).
3. Haida Nation v. British Columbia (Minister of Forests), 2004 SCC 73.
4. Tsilhqot'in Nation v. British Columbia, 2014 SCC 44.
5. United Nations General Assembly, “United Nations Declaration on the Rights of Indigenous Peoples,” A/RES/61/295, September 13, 2007.
6. International Labour Organization, “Indigenous and Tribal Peoples Convention,” No. 169, June 27, 1989.
7. Assembly of First Nations, “Dismantling the Doctrine of Discovery” (Ottawa: Assembly of First Nations, January 2018).