The clans of course!

In the Warrior cat series there are four clans. Thunder, Wind, River, and Shadow. In these books Thunderclan is the clan where you will read about. There are leaders, deputys, medicene cats, and more in each clan. Even though they are just cats living in the wild they have many problems to overcome. Like twolegs (humans), dogs, and monsters (cars). These cats have came through battles, friendships, and even relationships. I don't want to say more read and you will find out!