I don't know that conquest is ever a right, regardless whether it's standard prcedure for the entire world or not. If the entire world were serial killers, I wouldn't jump on the bandwagon. I'm sure if the US took Canada as the 51st state(that would take about 3 days) I don't think they would be happy with our right to conquest. (rightfully)

Also, I think "Native" implies that they may have migrated, but were indeed "native", i.e., not conquistadors

No defensiveness meant. Just puttin' it out there.