How the percentage of US Military spending in the 1980's as well as the proposal of the Strategic Defense Initiative (SDI or "Star Wars") had on the Soviet Perception of the Cold War?

The correct answer to this open question is the following.

Those above-mentioned programs really had an impact on the Soviet Union's side in that the Soviets believed that the United States could have the advantage to launch a first-strike against the USSR. Let's remember that US President Ronald Reagan announced the "Star Wars" program on March 23, 1983. Formally known as the Strategic Defense Initiative (SDI), Reagan tried to be a step ahead against the Russians in the Cold War. However, some Soviet analysts and critics in the US, considered that the costs to implement that strategy were too high and the technology at that time was limited to reach the original goals of the program.

they sent much needed naval support to the colonists, and were instrumental in the siege of yorktown