---
title: Os Grandes Canhões Começaram a Troar [The Great Guns Have Begun to Thunder]
url: https://propagandaarchive.org/collection/us-ociaa-os-grandes-canhoes-comecaram-a-troar-portuguese-1943/
description: A colour photograph shows a US warship's gun firing over open sea, captioned as shells poured onto enemy defences ahead of a land invasion.
section: Collection
---

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3. Os Grandes Canhões Começaram a Troar [The Great Guns Have Begun

[![Os Grandes Canhões Começaram a Troar \[The Great Guns Have Begun to Thunder\], 1943 US poster: A colour photograph shows a US](https://propagandaarchive.org/collection/images/us-ociaa-os-grandes-canhoes-comecaram-a-troar-portuguese-1943.jpg)](https://propagandaarchive.org/collection/images/us-ociaa-os-grandes-canhoes-comecaram-a-troar-portuguese-1943.jpg)

# Os Grandes Canhões Começaram a Troar [The Great Guns Have Begun to Thunder]

A colour photograph shows a US warship's gun firing over open sea, captioned as shells poured onto enemy defences ahead of a land invasion. The display of firepower and the verb 'vomit' aim to impress and intimidate rather than inform; the fear-appeal tag is weak, as the poster is mainly a show of strength.

## Propaganda techniques used in this poster

[Fear appeal](https://propagandaarchive.org/techniques/fear-appeal/)

## Text on the object

Original (Portuguese) · read from the image, not independently checked

```
OS GRANDES CANHÕES COMEÇARAM A TROAR

Os canhões de uma belonave dos Estados Unidos vomitam, em preparação à invasão das forças de terra, toneladas de projéteis contra as defesas inimigas.

Publicado pelo Coordenador de Assuntos Interamericanos, Washington, E. U. A.
```

English translation (machine translation by Claude, not verified by a fluent reader)

```
THE GREAT GUNS HAVE BEGUN TO THUNDER

The guns of a United States warship vomit, in preparation for the invasion by land forces, tons of projectiles against the enemy defences.

Published by the Coordinator of Inter-American Affairs, Washington, U.S.A.
```

[← Bombardeios Nazistas \[Nazi Bombardments\]](https://propagandaarchive.org/collection/us-ociaa-bombardeios-nazistas-portuguese-1943/) [La Grande-Bretagne n'a pas cessé d'être une île (Great Britain has not ceased to be an island), ORAFF poster →](https://propagandaarchive.org/collection/vichy-clemenceau-england-oldest-enemy-oraff-1943/)

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- [Tyrants Prostrate, Liberty Triumphant (pro-Polk cartoon on Dorr), 1844](https://propagandaarchive.org/collection/tyrants-prostrate-liberty-triumphant-polk-1844/) (United States · 1844 · Name-calling, Fear appeal). Content note: Speech balloons contain anti-Catholic and nativist wording ('the ruins of Popery') in the mouths of the Whig figures, written by a Democratic cartoonist and shown unaltered.
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