A global ban on nuclear weapons was approved earlier this month at the U.N. headquarters in New York. A total of 122 countries signed the Treaty on the Prohibition of Nuclear Weapons. None of the signatories, however, possesses a nuclear bomb.

The world's nuclear club — the United States, Britain, Russia, China, France, India, Israel, Pakistan and, most recently, North Korea — boycotted the talks, arguably dooming them to failure. Nikki Haley, U.S. ambassador to the United Nations, said in March that Washington couldn't allow "bad actors" to have nuclear weapons and "those of us that are good, trying to keep peace and safety, not to have them."

A joint statement by the United States, Britain and France on July 7 said the ban "disregards the realities of the international security environment." As a result, all countries that rely on the nuclear deterrent either stayed away (including South Korea), voted against the ban (the Netherlands) or abstained (Singapore).