Nuclear Non-Proliferation Treaty. Nuclear weapon, Nuclear power, Nuclear proliferation, Nuclear sharing, India and weapons of mass destruction, Israel and weapons of mass destruction, Pakistan and weapons of mass destruction, North Korea and weapons of mass destruction, 2006 North Korean nuclear test, Six-party talks, Iran and weapons of mass destruction, Nuclear program of Iran, South Africa and weapons of mass destruction, Nuclear peace, Indo-US civilian nuclear agreement, International Atomic Energy Agency