Rami Arieli: "The Laser Adventure" Chapter 9.3.3 page 1

9.3.3 Laser weapons ("Star War").

A lot was written on the Strategic Defense Initiative (SDI) of the US government.

This futuristic project was named by the public "Star Wars".

The idea behind this initiative was to build high power devices that can send beams over very big distances in a very high accuracy and very high speed.

These high power devices were supposed to destroy the USSR missiles above their lounching sites right after this launch. Since these missiles were supposed to carry nuclear weapons, it was not possible to let them arrive above Europe or the US. By destroying the missiles at the launch zone a great damage would be caused to the attacker, so such defense system was a threat to the other side.