I don't think anyone would need an entire army to fight humans. Well, not in my world... maybe here.

But, yeah, of course you have to fight sometimes. I fight all the time. It's just, back home, the entire continent's been at war for twenty years, over... basically nothing. Who gets to be Queen of the Sandwings. I mean, that's not not important, but it's not "everybody from every tribe spends two entire decades killing each other about it" important.