I second this book recommendation. Also, the National Security archive at George Washington U has some good material on this ( and other stuff). <https://nsarc

I second this book recommendation. Also, the National Security archive at George Washington U has some good material on this ( and other stuff). <https://nsarchive.gwu.edu/project/able-archer-83-sourcebook https://nsarchive.gwu.edu/project/able-archer-83-sourcebook>