How can I colonize the provinces on the sub continent of India and have the native population join me after turning to a level 7 colony. I can do it successfully on the North American continent, but not in India, which has those large 10,000-12,000 native populations. When I enter with my soldiers, I'll fight one small battle, win it, and then the natives are all gone, completely gone, none, nada, zip are left to join me! In North America after a similar fight, the natives are reduced in number, but they are still there to join my colony at level 7 - of course unless - I choose to 'wipe them out'. I tried colonizing without soldiers, so that the natives are not killed by my soldiers, but after the colony got up to a level 5 without any protection, the natives wiped it out completely, now I have to start over from zero. What am I doing wrong?