the frog of war

sir! the enemy is all around us!
just keep firing, private.
but sir! I can't see a thing! it's all so dark!
is that so?
yes sir! it's the fog of war, I guess! the senses can't cope!
boy, you got a frog hanging off your helmet.
a frog? on my helmet? oh! it's filbert! hey, get offa there! sir! whaddya know! I can see!
the frog has lifted, as it were?
it has!
how about that.