The status of nuclear forces (estimates, as of January 2020)
Stockholm International Peace Research Institute releases (SIPRI) who Hirohisma Prefecture signed the MOU with launches SIPRI YEARBOOK 2020 and announces the latest status of nuclear forces.
As of January 2020, the total number of nuclear stockpile is 13,400. It decreases 465 compared with the number of January 2019. As same as the last year, the U.S. and Russian nuclear stockpiles together constitute more than 90 percent of the total. Although the U.S., Russian and French nuclear stockpiles decrease, the U.K., Chinese, Indian, Pakistan, Norh Korean nuclear stockpiles increase.
https://hiroshimaforpeace.com/en/nuclearweapon2020/