If you came here you probably want to know some of the clans or you want to know about them here are 2 of the clans I know of:
http://armorgames.com/user/JohnGarell
http://armorgames.com/user/CalvinKidd137
For JohnGarell just read his "about" and for CalvinKidd137 I believe you can ask him or he invites you. As for the war i think its just to see who was the most recruits