> How do countries defend against things like cruise missiles? Cruise missiles are designed to resist efforts to thwart them. If GPS is available and reliable,

> How do countries defend against things like cruise missiles? Cruise missiles are designed to resist efforts to thwart them. If GPS is available and reliable, it's used, but if not, such a missile switches over to inertial guidance and terrain matching. A modern cruise missile is a formidable threat. > Can Patriot Missiles shoot down cruise missiles? Not with any reliability. Cruise missiles are too fast and too stealthy. > Or are cities left to fire anti-aircraft weapons and hope they get lucky? That's about it.