If a civilization is so advanced that it can reach us, then we have to assume that they are here to take our resources. We can take a peaceful approach but we s

If a civilization is so advanced that it can reach us, then we have to assume that they are here to take our resources. We can take a peaceful approach but we should have our finger on a nuclear arsenal in case they decide they are bored with us and want our water and minerals. But chances are they would know everything about us already and would anticipate that as well.