Peace with Mexico

In Short

This political tract serves as a rigorous, principled critique of the United States' role in the Mexican-American War. Published in 1847 by a former Secretary of the Treasury and diplomat, it dissects the legal and ethical failures that led to the conflict, specifically questioning the annexation of Texas and the arbitrary expansion of the border to the Rio Grande. By examining the law of nations and the requirements of diplomacy, the work argues that the war was unprovoked and unjust, urging the government to pursue an immediate, honorable peace based on moral rectitude.

The Story

The narrative begins by acknowledging the overwhelming military success of the United States. Despite an initial disparity in resources and political stability, American forces have achieved victory after victory, securing far-flung territories and reaching the Mexican capital. Yet, the author argues that these "splendid and almost romantic successes" have dangerously blinded the American public, creating an intoxicating atmosphere of military glory that masks the war’s dubious origins.

The focus shifts to a cold analysis of how the war began. The author argues that the annexation of Texas was, in itself, a declaration of war against Mexico, as it incorporated a territory that was still an active combatant in a conflict with its former sovereign. By moving beyond the Nueces River—a region historically under Mexican jurisdiction—to the Rio Grande, the United States government manufactured a border dispute to justify hostilities. The author meticulously dismantles the official arguments for this boundary, noting that no evidence supported the claim that the land between these rivers was ever a settled part of Texas.

As the argument progresses, the author exposes the internal contradictions of the American position. While the government demanded indemnity for debts owed to U.S. citizens, these claims were never the actual cause of the war; such disputes were historically resolved through patient, long-term negotiation, not violence. The author observes that the administration, having pushed the nation toward a collision through diplomatic aggression and the refusal to accept specialized commissioners, suddenly found itself unable to control the "reckless spirits" it had evoked.

The final arc of the argument addresses the dangerous national myths currently being propagated, most notably the belief in an "hereditary superiority of race" that supposedly grants Americans the right to subjugate their neighbors. The author categorically rejects this, insisting that democratic institutions, not bloodlines, are the source of national strength. The book concludes with a call to conscience. It posits that the true mission of the United States—to serve as a beacon of liberty and justice—is compromised by a war of conquest. The author proposes a generous peace: the voluntary abandonment of unauthorized territorial claims, keeping only what is strictly due to citizens, and establishing a neutral desert buffer between the two nations to prevent future conflict. The work ends with an appeal to the people and their representatives to reclaim the nation’s integrity by choosing justice over the pursuit of an "intolerable nuisance" of empire.

How It Unfolds

The legal foundation The author establishes that the war must be judged by the established "law of nations" rather than the prevailing fervor of the moment. He notes that while the American military is undeniably superior in the field, success in combat provides no ethical justification for the annexation of territory.

The provocation of conflict The narrative pivots to the annexation of Texas, which the author identifies as a de facto act of aggression against Mexico. He explains that by aligning with a party still at war, the United States effectively bypassed the possibility of a peaceful resolution.

The failure of diplomacy The author examines the breakdown of negotiations, specifically the government’s insistence on sending a resident minister rather than a special commissioner. This diplomatic rigidity is presented as a deliberate maneuver to force a confrontation.

The boundary dispute A detailed investigation reveals that the claim to the Rio Grande as the border is historically and legally baseless. The text clarifies that the area between the Nueces and the Rio Grande was exclusively inhabited and governed by Mexicans, making the U.S. military advance an invasion of foreign soil.

A call for national character The concluding sections argue against the dangerous ideology of racial superiority used to justify the war. The author asserts that the true honor of a democratic nation lies in its adherence to the Golden Rule and the voluntary cessation of unjust conquests.

The People

Albert Gallatin acts as the primary voice of reason, a veteran statesman who views the crisis through the lens of institutional integrity and international law. He is driven by a profound concern that the United States is straying from its foundational democratic principles. Opposing him, though represented as an institution rather than a singular character, is the "administration" of the time—specifically, the President and the Secretary of State. These figures are portrayed as individuals of reputable private character who have nonetheless been seduced by "unbounded cupidity and ambition," leading the nation into a war of aggression. The Mexican government, led at times by figures like General Herrera, is depicted as a weaker power struggling with internal instability, yet one that recognized the annexation of Texas as a fundamental violation of its sovereignty. These figures are not antagonists in a traditional sense, but participants in a tragedy of misunderstanding, where the American government’s refusal to negotiate in good faith left little room for a peaceful outcome.

In Its Own Voice

"The most remarkable and unexpected feature of that warfare is, that volunteers, wholly undisciplined in every sense of the word, have vied in devotedness and bravery with the regular forces, and have proved themselves, in every instance, superior in the open field to the best regular forces of Mexico."

The author acknowledges the undeniable success of American troops despite their lack of traditional training.

"It is said, that the people of the United States have an hereditary, superiority of race over the Mexicans, which gives them the right to subjugate and keep in bondage the inferior nation."

The author identifies the racial ideology used to justify the war as a dangerous and shallow pretext for expansion.

"A more truly glorious termination of the war, a more splendid spectacle, an example more highly useful to mankind at large, cannot well be conceived, than that of the victorious forces of the United States voluntarily abandoning all their conquests."

The author proposes a moral alternative to the acquisition of territory.

What It's Really About

The central theme is the incompatibility of imperial conquest with a true democratic republic. The author questions whether a nation founded on the principles of liberty and equality can survive the moral decay that accompanies an unprovoked war. The work explores the tension between "expediency"—what is politically useful or profitable—and "justice"—what is morally right. It explicitly challenges the reader to consider whether the United States’ mission is to expand through the "fire and sword" of a conqueror, or to uphold the rule of law and the rights of smaller, weaker neighbors. The text is an inquiry into the cost of "false glory" and whether a superpower can sustain its integrity while dismembering another nation for the sake of its own territorial growth.

Why Read It Today

This book is essential for readers interested in the history of American foreign policy and the intellectual roots of anti-war dissent. It feels remarkably contemporary in its dissection of how governments manufacture pretexts for conflict and how the rhetoric of "national honor" is often used to silence internal criticism. Readers will find the author’s prose to be precise, dignified, and refreshingly devoid of the partisan venom often found in today’s political discourse; he critiques the administration’s actions while maintaining a respectful, scholarly tone.

The primary difficulty lies in the nineteenth-century prose, which is long-winded and densely packed with legalistic argumentation regarding treaties, commissions, and diplomatic protocols. Additionally, the reader must be prepared for the author’s period-specific assumptions about the nature of nations and the "civilized world," which reflect the worldview of an elder statesman of the 1840s. However, the reward for navigating this is a rare, clear-eyed look at a nation at a crossroads. It stays with you because it forces a confrontation with the uncomfortable idea that a country’s greatest military triumphs can simultaneously be its greatest moral failures, and that the true measure of a nation’s strength is its willingness to return what it has unjustly taken.