Are you suppose to specify what country(s) will be involved and what method of attack(s), i.e. air, land, sea, space, etc?
That could be the tie-breaker in that unlikely event. The ultimate wild card would be the Nebraska Navy in a space attack. :)
If anyone knows someone who was working on the burrowing bomb, and can get me contact information, I can guarantee I known what method they'll want to use...