If you go to Simcountry Wikia you'll find more info on conquering C3 than you can absorb. Still a good place. It's too bad you didn't study this before you started. Still, the GM's have set things up so the first C3 is easy. Because I was floundering around real bad I think it cost me more than 5 GC's (in lost troops) for my first C3 so be prepared to spend some GC's. It'll be worth it, you need to learn how to wage war.