Looking for books, I saw a list of "Most Disturbing Books Ever." This one qualifies, albeit written during the Cold War and perhaps (but only perhaps) a tad passe. It is objective and clear-eyed and describes, among other things, what would happen to the Earth after a nuclear exchange.
Why politics of defense has muddled the basic need. It has morphed into an insatiable system that bleeds money on inefficiencies and manufactures war to justify the expenses.