According to the latest report by Stockholm International Peace Research Institute (SIPRI), the number of nuclear warheads with nine nuclear countries has reduced from 14,935 at the start of 2017 to 14,465 at the start of 2018.
These nine countries include The United States, Russia, Britain, France, China, India, Pakistan, Israel and North Korea.
SIPRI is an independent think tank that uses open sources to compile such data since 1966.
Out of 14,465 nuclear warheads at the beginning of 2018, 3750 are actually deployed. This compared with 14,935 warheads at the start of 2017.
World’s nuclear powers are reducing their nuclear arsenals but they are also modernising, putting a fresh and worrying focus on strategic deterrence.
The reduction is due to arms control commitments by US and Russia in 2010 Treaty on Measures for Further Reduction and Limitation of Strategic Offensive Arms (New START Treaty).
Russia (with 6850 nuclear warheads) and the US (with 6450 warheads) hold 92% of world's total nuclear warheads. However, they have long-term programmes underway to replace and modernise their nuclear warheads and nuclear weapons production facilities.
Britain has 215 nuclear warheads, France has 300, China has 280, India 130-140, Pakistan 140-150, Israel 80 and North Korea 10-20.
Above these 9 countries are either deploying or planning to deploy new nuclear weapons system. North Korea also demonstrated unexpected rapid progress in the testing of two new types of long-range ballistic missile delivery systems for delivery of its nuclear weapons.
Although Pakistan has more nuclear warheads in numbers than India, still India is much capable to strike whole of Pakistan with its long-range capable nuclear warheads.