Why was the Intermediate-Range Nuclear Forces Treaty 1987 significant?

The 1987 Intermediate-Range Nuclear Forces (INF) Treaty was significant because it required the US and Soviet Union to eliminate all nuclear and ground-based ballistic missiles and cruise missiles. This was big, because it reduced the threat of nuclear war all over the world. Without missiles, the world had a much less threat of destruction.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.