All go together.

The guard are of course at once all action; the men asleep in camp are waked by the loud drumming of the thousands of hoofs on the hard ground and at once rush for their horses to assist.

The stampede must be stopped and there is only one way to do it--to get up to the lead animals and try to swing them round with the object of getting them to move in a circle, to "mill" as we called it.
But the poor beasts meantime are frantic with fear and excitement and you must ride hard at your level best, and look out you don't get knocked over and perhaps fatally trampled on.

You must know your business and work on one plan with your fellow-herders.

On a pitch dark night in a rough country it is very dangerous indeed.