Epsilon Third Planet had once been a planet of beautiful scenery and complex ecosystems. Because of a unique mineral buried beneath its surface, its native intelligent species had developed a Prosperous Civilization and become an important member of the Anti-Insectoid Alliance.
But three years ago, the insectoids launched a surprise assault on the planet through wormholes. With lightning speed, they destroyed the planet's civilization and killed all its native inhabitants.
The Anti-Insectoid Alliance immediately began preparations to attack and retake Epsilon Third Planet once it discovered this. But the insectoids reproduced at an astonishing rate. By the time the alliance organized its counterattack, the planet had already been riddled with tunnels and inhabited by hundreds of millions of high-level insectoids.
More importantly, because of the planet's special mineral deposits, the Anti-Insectoid Alliance could not simply use a Star Annihilation Weapon.
The reason was simple. The unique rule of the [Deep Space] world was the Star Net, a Subspace Channel linking major galaxies and planets throughout the universe. To cross the vast distances measured in light-years, one had to rely on the Star Net.
The special mineral on Epsilon Third Planet was a substance that could react with the Star Net. It was commonly used in spacecraft for interstellar travel. If a Star Annihilation Weapon were used to detonate the planet, the energy produced by activating such a massive quantity of minerals would very likely affect the Star Net.
According to scientists' calculations, the resonance generated by that energy could temporarily paralyze large portions of the Star Net, cutting off contact between planets for a short time and preventing them from mobilizing military forces or continuing trade.
The problem was that insectoid interstellar travel did not rely entirely on the Star Net. They had evolved a unique ability to create wormholes.