battle cry

A cry or chant that is taken up in battle, usually right before one army/force charges the other. Battle cries are meant to stir up the hearts of soldiers, to inspire them and remind them what they're fighting for: their homes, their families, their people, their freedom, or their glory. Sometimes a battle cry could be a meaningful phrase (i.e. "Andu-falah-dor", which means "Let balance be restored"), but other times it could be just an unintelligible, fearsome shout.