Dehradun, Oct. 1 -- US President Donald Trump's most recent claim is that Iran has been rendered incapable of every having a nuclear weapon. Whatever the truth of that assertion, there is need to examine the existing global nuclear order.

Global nuclear security and deterrence doctrines form the structural framework preventing the use of nuclear weapons while managing international stability. Originally forged during the Cold War, these concepts dictate how state actors manage, secure, and deploy their nuclear arsenals to prevent catastrophic conflict.

At its core, nuclear deterrence is a psychological strategy aimed at preventing aggression by convincing a potential adversary that the costs of an attack will drastically outweigh any bene...