That's not a question...and it doesn't belong in history, it belongs in Math.
Um The Soviet Union's collapse not only threw economic systems and trade relations throughout Eastern Europe into a tailspin
Answer:
President Reagan's Strategic Defense Initiative was to shoot down missiles in the air.
Explanation:
To be honest, I don't know what the question is so...
The project was an anti-ballistic missile program that was designed to shoot down nuclear missiles in space.