Over the past 20 years, the old nuclear powers: the United States, Russia, Great Britain and France have reduced their weapons stockpiles, while China, India, Pakistan, Israel and the DPRK, on the contrary, have increased them.
Over 20 years, China increased the number of warheads 2.64 times and rose from 6th place to 3rd place. If the trend continues, then in 20-30 years China will achieve nuclear parity with Russia and the United States.