Re: SMALLER ALIEN EMPIRES

***
the aliens  landed -and were immediately attacked by  hostile
microscopic life that devoured their starship . . .
***

Or the entire combined Vl'hurgs/G'Gugvuntt fleet swallowed by a dog, or
Agnes Morehead as the little old lady alone, who dispatched an entire
survey team and ship, with a kitchen knife and chopper.

However, as literary references go, I think he's wanting something more
in
'A Mouse that Roared' vein.

The_Beast