What will war be in the future? A battle between aggressive, high-tech killer machines that attempt to seek out and destroy the enemy? A massive defensive shield, like National Missile Defense (NMD)? A remote-controlled war from outer space using a complex network of satellites? Will we weigh cost over casualty: is it more cost-effective for foot soldiers carrying equipment worth as much as $250,000 to die in the field, or should we opt for a multi-billion dollar casualty-free cyberwar that is more like a video-game? Will terrorism become the new means of warfare, and what are the implications if it does? What new threats do we face from weapons of mass destruction? It's likely that all of these scenarios will occur - at the same time. Whether you're interested or not.