Whats the name of this genre??

Ok so like, there are these books I keep seeing and I really like them, and I've not seen the genre name. Think Warrior cats/ Wings of fire, clans, kingdoms, war yk yk. it's probably a fantasy and Young adult mix but there are so many of these I'm assuming they're a kind of genre. if not it's probably a cliche or something but id like to find out. I've tried google but nothing relevant shows up :/

thanks lots.