Yes, they gave their battle-cry like they did throughout the film. They do this to indicate the fact that, brief history lesson, Sparta's ruling class was all soldiers: that was their sole profession because their city was supported by something like five times their number in slaves, and a civilian class that couldn't vote or hold office. On the other hand, the armies of other city-states (Such as those the Spartans ran into) were full of citizen-soldiers with other jobs. So Leonidas is essentially correct in saying that he has brought more (real professional) soldiers.
