 This allowed the mayor of We Made It to purchase a Faster-Than-Light drive on credit from the Outsiders.Once the humans had FTL warships, the Kzinti couldn't defeat the humans in space combat.The Puppeteers had hoped that the culling of a quarter to a third of the more aggressive members of the Kzinti with every war would result in a more peaceful race, or at least one that was capable of coexisting with other species without instantly trying to kill and eat them.