# How does Invaders from the Infinite develop the theme of Unity Against a Common Enemy?

> Invaders from the Infinite by John W. Campbell

## Answer

Invaders from the Infinite by John W. Campbell develops Unity Against a Common Enemy across the chapters the companion marks for this theme.

Diverse alien races, including humans, Ortolians, Talsonians, and Venonians, must form alliances to combat the Thessian invaders, highlighting the theme that survival requires cooperation across cultural and interstellar divides.

The Ortolians seek Earth's help against the Invaders, setting up a potential alliance against a shared threat.

Earth and the Ortolians must unite to face the Thessian threat, with potential alliance with the Sirians.

The terrestrians and Ortolians work together to defend Ortol from the Thessian attack.

## Evidence

- [ii-canine-people](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/ii-canine-people.md): The Ortolians seek Earth's help against the Invaders, setting up a potential alliance against a shared threat.
- [iii-a-quarter-of-a-million-light-years](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/iii-a-quarter-of-a-million-light-years.md): Earth and the Ortolians must unite to face the Thessian threat, with potential alliance with the Sirians.
- [v-ortol](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/v-ortol.md): The terrestrians and Ortolians work together to defend Ortol from the Thessian attack.
- [vii-world-3769-37-478-326-894-6-talso](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/vii-world-3769-37-478-326-894-6-talso.md): The crew of the Ancient Mariner and the Talsonians form an alliance against the Thessians, pooling their unique strengths.
- [viii-undefeatable-or-uncontrollable](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/viii-undefeatable-or-uncontrollable.md): The terrestrials and Talsonians cooperate to share power and knowledge in the fight against the Thessians.
- [x-improvements-and-calculations](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/x-improvements-and-calculations.md): Earth, Talso, and Ortol ally against the Thessian threat, with Arcot sharing knowledge and resources to strengthen the coalition.
- [xi-write-off-the-magnet](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/xi-write-off-the-magnet.md): The terrestrial squadron follows Arcot's orders despite heavy losses, showing coordinated resistance against the Thessian threat.
- [xii-sirius](https://www.betterreads.dev/discover/invaders_from_the_infinite_se/chapters/xii-sirius.md): Arcot forges an alliance with the Sirians, Ortolians, and Talsonians to combat the Thessian threat from Thett.

## Links

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