Prime Minister Shigeru Ishiba, a longtime advocate of nuclear deterrence by means of the sharing of nuclear weapons, mentioned Sunday that his authorities will “critically take into account” collaborating as an observer in a convention of signatories to a United Nations treaty that bans the weapons.
Adopted by the U.N. in 2017, the Treaty on the Prohibition of Nuclear Weapons (TPNW) bans the event, testing, manufacturing, acquisition, possession, stockpiling and use of nuclear weapons, in addition to the risk to make use of them. It has since been ratified by dozens of nations world wide, however not one of the declared nuclear weapons states — particularly the United States, United Kingdom, France, China and Russia — has adopted go well with.