2045 will be the centenary of the only use of nuclear weapons against an enemy target. The world has avoided their use since then, but the presence of nuclear weapons in the arsenal of nine countries creates scary possibilities that they will be used. Today, Russia issues veiled nuclear threats, North Korea conducts daily tests of long-range nuclear-capable missiles, and China has a growing nuclear inventory, all of which represent the faded global initiatives to eliminate nuclear weapons. And so, Gar Pardy, a former Canadian ambassador and long-time diplomat, offers cogent advice on international efforts for the elimination of nuclear weapons.