So I actually have a Social Studies book from my old school, lucky for you, we got to the Cold War.
Here's what the book stated:
One of Reagan's proposals was the Strategic Defense Initiative (SDI). He believed this defense shield could make nuclear war impossible, but the unlikelihood that the technology could ever work led opponents to dub SDI "Star Wars."
Also, I do know that this is also found on another website but thats probably where the book's information came from.
