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Who really said it

An army marches on its stomach

Not Napoleon — first credited to Frederick the Great Frederick the Great 1712–1786 · King of Prussia · first credited with the saying in 1858, many years after his death
No primary text by either man has been found containing this saying. Rights unconfirmed

The earliest strong match Quote Investigator ↗ has found is Thomas Carlyle’s 1858 History of Friedrich the Second, Called Frederick the Great, where the adage reads “an Army, like a serpent, goes upon its belly” and is credited to Frederick. Even that credit is second-hand and posthumous — Frederick died in 1786 — and Napoleon was not attached to the saying until 1862, also long after his own death.

Last verified 27 Jul 2026 · how we verify · spot an error?

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“An army marches on its stomach” routinely credited to Napoleon Bonaparte (1769–1821), but no source supports it. The earliest strong match documented by Quote Investigator is Thomas Carlyle's 1858 'History of Friedrich the Second, Called Frederick the Great', which gives the saying as "an Army, like a serpent, goes upon its belly" and credits Frederick the Great, who had died in 1786. Napoleon was not linked to the adage until 1862. Via Quotle.info

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We couldn’t verify where this wording comes from, so there’s no rights status to give. Safe to present as an unverified or anonymous line — just don’t assert a specific author or source.

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In context

Evoking the world of Frederick the Great — King of Prussia 1740–1786 · soldier-king and military writer. Theme: "An army marches on its stomach". Atmospheric and restrained, cinematic directional light, a muted period-appropriate palette, fine grain and texture. Compose with generous empty space for the quote and a small credit line. No lettering in the image itself.

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Minimalist editorial slide for the quote "An army marches on its stomach". Clean background, a single muted accent color, generous negative space, subtle paper or linen texture, no literal illustration — let the words carry it. Reserve clear space for a serif quote and a small credit line. No lettering in the image itself.

Provenance

The earliest strong match: Carlyle, 1858

Work
History of Friedrich the Second, Called Frederick the Great
Author
Thomas Carlyle
First published
1858 · Book II, Chapter VI, “The Teutsch Ritters or Teutonic Order”
Wording
“an Army, like a serpent, goes upon its belly” — not “marches on its stomach”

Barbarossa’s Army of Crusaders did not come home again, any more than Barbarossa. They were stronger than Turk or Saracen, but not than Hunger and Disease; Leaders did not know then, as our little Friend at Berlin came to know, that “an Army, like a serpent, goes upon its belly.” After fine fighting and considerable victories, the end of this Crusade was, it took to “besieging Acre,” and in reality lay perishing as of murrain on the beach at Acre, without shelter, without medicine, without food. Book II, Chapter VI

Carlyle’s “little Friend at Berlin” is Frederick the Great; a later volume of the same history makes the ascription explicit, writing “an Army goes on its belly, says Friedrich often.” The text above is transcribed from the Project Gutenberg edition ↗, whose Volume 02 contains Book II; Quote Investigator ↗ cites the passage to page 83 of the 1858 Harper & Brothers printing.

Full text of the volume containing the passage
History of Friedrich II of Prussia, Volume 02
Quote Investigator: An Army Marches On Its Stomach

Paper trail

  • Quote Investigator ↗ reports that the earliest strong match it knows appeared in Carlyle’s 1858 volume on Frederick the Great, and that an instance was attributed to Frederick II by 1858 and to Bonaparte by 1862 — in each case, it notes, the long delay reduces the credibility of the linkage.
  • The sentence itself is readable in Project Gutenberg’s text of Carlyle’s history ↗, in Book II, Chapter VI, where it is set inside quotation marks as something “our little Friend at Berlin came to know.”
  • Wikiquote’s Frederick II page ↗ carries the line in its Attributed section, sourced to Carlyle’s 1858 history rather than to anything written by Frederick.
  • Wikiquote’s Napoleon page ↗ does not carry “an army marches on its stomach” at all; what it does list, in its Attributed section, are the far tamer remarks recorded by Count de Las Cases at Saint Helena.

No rights status can honestly be asserted for the popular wording, because no work has been identified as its source — the “stomach” form is an unattributed adage of unknown origin. The 1858 Carlyle passage quoted on this page is a separate matter: published in 1858, it is long in the public domain in the United States and is distributed in full by Project Gutenberg.

Rights status is our research, not legal advice — and copyright varies by country and edition. For commercial or published use, confirm with the rightsholder. See terms.

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Fact-check

Who gets the credit, and why

This is a logistics maxim with two famous claimants and no documented author. Both credits arrive decades after the man they name had died.

Napoleon Bonaparte Unsupported

Quote Investigator ↗ finds Napoleon first attached to the saying in 1862, when a Springfield, Massachusetts newspaper printed “Napoleon said an army marched on its belly” — many years after his death in 1821. QI also points to a likely mechanism: in James Parton’s 1860 Life of Andrew Jackson, Frederick’s “serpent” line sits directly beside a separate remark credited to Napoleon, and QI notes that readers sometimes transfer the ascription of one statement to a neighbouring one.

Frederick the Great Unverified

Carlyle put the words in Frederick’s mouth in 1858; Frederick died in 1786, and no text of his own has been produced containing the saying. Wikiquote ↗ accordingly files it under Attributed, citing Carlyle.

The “stomach” wording Later variant

Every nineteenth-century citation gathered by Quote Investigator ↗ says belly: “goes upon its belly” (1858), “marched on its belly” (1862), “crawls upon its belly” (1868), “travels on its belly” (1869). The politer modern “stomach” form does not appear anywhere in that chronology.

The honest position is the one Quote Investigator ↗ reaches: the saying enters print in 1858 in Carlyle’s hands, credited to a king already dead for decades; Napoleon is pinned to it by 1862; and QI closes by hoping that future researchers will locate earlier instances in English, German, or French.

Context

Why the credit drifted to Napoleon

Supply is the least glamorous part of war and the part that decides it, so an aphorism about feeding soldiers has obvious appeal — and obvious pull toward the most famous commander available. Napoleon is that commander. But the documentary record runs the other way: the adage is in print, in English, credited to Frederick the Great, before anyone thought to hand it to Napoleon.

The drift has a traceable shape. Quote Investigator ↗ shows Frederick’s “serpent” line printed in 1860 alongside a quite different remark credited to Napoleon — that what a soldier most needs is “a full belly and a good pair of shoes” — and a Wisconsin newspaper reprinting the pair in 1861. Two years after Carlyle’s volume the two names were already sharing a paragraph about rations; by 1862 a Massachusetts editor had merged them.

an Army, like a serpent, goes upon its belly

What the two men actually wrote about feeding an army

Napoleon. The genuine remarks are broader and blunter. In Count de Las Cases’s Journal of the Private Life and Conversations of the Emperor Napoleon at Saint Helena (London: Henry Colburn), an entry dated July 1816 records Napoleon telling an idle boy named Tristan that no one should eat who does not work, then tapping the child’s belly: “Such is the influence of the belly … It is hunger that makes the world move.” The passage can be read in the Internet Archive’s scan of Volume II ↗. A later volume has him say of army rations, “There is no subordination with empty stomachs.” Both sit in the Attributed section of Wikiquote’s Napoleon page ↗. Neither is the saying.

Frederick. The 1762 London translation of Frederick’s Military Instructions opens its chapter on magazines and subsistence with a closely related maxim — and pointedly does not claim it: “It was said by a certain General, that in order to have a good army you must begin by providing well for the belly, which is the main spring of every operation.” (Spelling modernised from the printing’s long s; see the scanned volume ↗.) It is a different sentence from the one under investigation, and Frederick presents even this one as somebody else’s.

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Trusted places to keep pulling the thread — primary archives, fact-checks, and scholarship. We show how we used each one before you leave.

Quote Origin: An Army Marches On Its Stomachquoteinvestigator.com

The definitive study. Full dated chronology from 1858 to 1869, the 1862 Napoleon citation, and QI’s conclusion that both credits are posthumous.
Frederick II of Prussia — Wikiquoteen.wikiquote.org

Lists the “serpent … belly” line in its Attributed section, sourced to Carlyle’s 1858 history, not to Frederick.
Napoleon — Wikiquoteen.wikiquote.org

Does not contain “an army marches on its stomach” anywhere; carries the Las Cases belly and empty-stomachs remarks under Attributed.
Carlyle, History of Friedrich II of Prussia, Volume 02gutenberg.org

Free full text containing the 1858 sentence in Book II, Chapter VI — the earliest strong match QI identifies.
Las Cases, Journal of the Private Life and Conversations of the Emperor Napoleon at Saint Helena, Vol. IIarchive.org

1823 London printing, scanned. Contains the July 1816 Tristan exchange and “It is hunger that makes the world move.”
Frederick II, Military Instructions (English translation)archive.org

London, 1762. Its subsistence chapter opens with a “provide well for the belly” maxim that Frederick himself credits to “a certain General.”
an army marches on its stomach — Wiktionaryen.wiktionary.org

Records the origin as unknown: “First attributed to Frederick the Great, and often attributed to Napoleon Bonaparte.”

The earliest name attached

Frederick the Great

Frederick the Great

1712–1786 · King of Prussia 1740–1786 · soldier-king and military writer

Frederick II of Prussia ruled from 1740 until his death in 1786 and wrote extensively on war, including a Military Instructions for his generals whose chapter on magazines and subsistence insists that a good army begins with provisioning. That real preoccupation is why Thomas Carlyle’s 1858 history could plausibly put the “serpent … belly” adage in his mouth, and why the credit stuck. But Carlyle is the earliest source anyone has produced, generations after Frederick’s death — and Frederick’s own manual credits its nearest equivalent maxim to an unnamed general.

For writers & researchers

Cite this

Earliest strong match (per Quote Investigator)

Thomas Carlyle, History of Friedrich the Second, Called Frederick the Great, Book II, chap. 6 (New York: Harper & Brothers, 1858), 83: “an Army, like a serpent, goes upon its belly.” Identified as the earliest strong match in Quote Investigator, “Quote Origin: An Army Marches On Its Stomach,” October 15, 2017.

This verification page

Quotle.info. “Who really said ‘An army marches on its stomach’?” Last verified 27 Jul 2026. https://quotle.info/who-said/an-army-marches-on-its-stomach/

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