I know this is a dumb question, but is there any research into developing force field technology? I feel that in the future with missiles and drones being the most effective military weapons, the most effective defense will be a force field. You would have to find a chemical that projects out to a distance, adheres to itself in a dome-shape formation, can be suspended in air, and can withstand heavy physical hits by missiles. It may not be possible but if it were, it would be a killer weapon, IMO.