The archers let their arrows fly, then drop their bows to deal with the elementals by hand. The front row footsoldiers are fairly easily tossed aside, but the clerics and elite soldiers can stand up against them; left alone, the hobgoblins are likely to take out the large elementals.<br/><br/>There's also the rest of the army, catching up, to consider. It'll be a few minutes, but more are arriving every few seconds.