Alternatively, we could take advantage of the obstacle that the elves themselves present to the invaders. While it will of course not take long for the draconids to overrun them, it will take some effort and there will be some confusion as they make their run to the walls. That gives us some extra time to fire into the bad guys, sow further confusion with the strike to the rear and any other tricks we come up with. The more time we have to hit them without them being completely organized or coming up the walls, the better. While it does abandon the elves to their fate for the most part, I think our resources are better massed for the real battle than to save some elves that may never be truly functional again. Cruel, perhaps, but if we lose it doesn't matter how many elves we may have saved.