Two leading proponents of the TPNW, South Africa and Kazakhstan, have shown through past actions that nuclear disarmament is possible.

When Kazakhstan gained its independence in 1991 following the collapse of the Soviet Union, more than 1,400 nuclear weapons remained on its territory. It opted to relinquish them all, recognising that its security was best achieved through disarmament.

South Africa reached the same conclusion at the end of the Apartheid era in the early 1990s, voluntarily dismantling its entire arsenal of nuclear bombs – an act later verified by the International Atomic Energy Agency.

Leaders from both nations have expressed great pride in their contributions to achieving a nuclear-weapon-free world, urging others to follow suit.