let i = number of invaders needed let c = number of loyal citizens in the colony i = ceil(c/5) Note that this does not take into account attempts at impeaching the invaders. For that, data on who is active and inactive in the colony is needed. Population data from http://www.aeri can empire.com/pep2.html (spaces added in case some Aerican randomly searches for links to there)
Parrwater: 3 invaders needed. Psyche: 6 invaders needed. Retsaot Island: 5 invaders needed.