Clenched Teeth

The Unyielding didn't want to attack us themselves, so they decided to play dirty.
Just imagine what they came up with - they feed the poor hyenas with Ambrosia until they become ferocious, then release them into our territory!
They form packs, and these packs are getting bigger and bigger. They started crawling out of every corner... We don't have time for these hyenas. And few are willing to risk their neck. There was one here... They latched onto his hand. And bit it off. He ran away from them. They attacked his leg! And chewed it off, too. Their teeth are like steel, they cut through rebar!
You'll have to... Scare them a bit. You don't need to kill all of them or drive them out of here. They are living creatures, and they protect the camp.
We'll just show them we're not afraid of them. They should know their place.

Well, did you scare the hyenas into hiding?

That's more like it! It's not really a problem, but there's... What was it... a defense line!