I think the endgame of drone warfare is tiny tiny drones (ie. 10 grams, $5) that are made by the billions.
Each drone can't do much, but together they can overwhelm any defence and get into every house and hold a virtual gun to the head of every citizen of an enemy
nation at once.
Each drone can't do much, but together they can overwhelm any defence and get into every house and hold a virtual gun to the head of every citizen of an enemy nation at once.