Actually, I think a variation on this makes the most sense: Go cheap. Kamikaze drones, cheap as possible - then it becomes a question of logistics, and AFAIK I'

Actually, I think a variation on this makes the most sense: Go cheap. Kamikaze drones, cheap as possible - then it becomes a question of logistics, and AFAIK I'd bet on the US military's logistics over just about anyone else's.