Military technology is subject to very real, very dangerous prisoners' dilemmas. In a way it doesn't matter if one side is starting it or not, the real question

Military technology is subject to very real, very dangerous prisoners' dilemmas. In a way it doesn't matter if one side is starting it or not, the real question is if it can be ruled out that either one of the sides could be doing it. And it's shit, because unilaterally declaring you're not gonna do it won't work at all, so there needs to be enough trust between the parties to institute a supervision regime, otherwise, if something is technological possible and promises military benefits, it will be done sooner rather than later.