A new Air Force strategy, Global Strike, calls for a military space plane carrying precision-guided weapons armed with a half-ton of munitions.

The “common aero vehicle” could strike from halfway around the world in 45 minutes.

The “Rods From God” space program aims to hurl cylinders of tungsten, titanium or uranium from the edge of space to destroy targets on the ground.

A third program would bounce laser beams off mirrors hung from space satellites or huge high-altitude blimps, redirecting the lethal rays down to targets around the world.

A fourth seeks to turn radio waves into weapons.