winter bivouac

what is this place, general?
this is winter in the north, son.
why are we bivouacked here?
the bug invaders don't like cold. they won't come here. it's our little strategic advantage.
I see. then what are those giant things coming at us over there?
what? oh my god! they burrowed under ground! there's thousands of them!
so much for our strategic advantage, eh, general?
don't talk! start shooting!