Nearly all of the nine nuclear-armed States, including India and Pakistan, continued intensive nuclear modernisation programmes in 2024, upgrading existing weapons and adding newer versions, according to a report by a global think-tank.
The report put India's 'stored' nuclear warheads at 172 in January this year while the number for Pakistan was 170.
"We estimate that Pakistan now has a nuclear weapons stockpile of approximately 170 warheads. The US Defense Intelligence Agency projected in 1999 that Pakistan would have 60 to 80 warheads by 2020, but several new weapon systems have been fielded and developed since then, which leads us to a higher estimate," the Nuclear Notebook column published in the Bulletin of the Atomic Scientists on September 11 said.
To enhance its nuclear capability, Pakistan is developing non-strategic nuclear weapons and thus joining the ranks of countries like the United States and Russia, a leading American think-tank has said.
According to the report, Russia tops the table with 6,375 warheads, followed by the United States with 5,800, and the United Kingdom with 215 warheads.
The US assessment of nuclear weapons security in Pakistan appears to have changed considerably from confidence to concern, particularly as a result of the introduction of tactical nuclear weapons, the report said.
'Once the military starts to draw up plans for using nuclear weapons, then nuclear weapons could be used earlier in a crisis than otherwise.'