Ghost Prime, If you are able to form this tribes then you will be in great shape. This is the only way to make it in a SHTF were there maybe gangs and the jails releasing the criminals. The more tribes the better. In the city were I am at it is harder to form tribes. In my block we are 10 to 12. We are arms well and food supplies are also good. Water is good too, I have rail barrels, a hand well and all the house have pools with about 20 to 25,000 gallons of water each.