[@chayden13]

I would imagine the clans would have a combined military strength of around 3500 - 4500 people or so. It may be a good idea to go into a bit of detail about the main clans. Not much just the basics such as their name, notable traits and number of clansmen (1000 clans man would be considered a very big tribe). 

You could have your intro post simply being a introduction for your main characters and them meeting up with the various other tribes people. This could give everyone an insight into the tribes society and how the different clans people interact with each other.