Federation ships may have phasers and photon torpedoes, but those are only a distraction for the real weapon: the swiss-omnitool that is the main deflector array. That thing can do anything, take out any threat. It just takes some time to be adapted to the current opponent. That's what the things everyone thinks of as weapons are for - to buy that time. -- RecklessPrudence
Throughout the galaxy, assorted species have learned one important lesson: Don't mess with the Federation. Some, like the Klingons and the Romulans, are slow learners. Though the Romulans note with some pride that they have learned before the Klingons did, and purposely avoided becoming one of the Federation's targets.
Other slow learners include the Cardassians, the Breen, and the Borg. And, lately, the Pelithant.
But then, you'd expect a species that's essentially a hivemind fungal colony to be slow on the uptake. As a sentient species, the Federation expects them to learn eventually, and in the meantime, are keeping their expansion in check. More or less. Some Pelithant spores make it through the embargo line. Some land on lifeless moons, and are allowed to persist. Others land on colonies and have to be... excised.
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