Here are the nine countries that have nuclear weapons
These
five nations are officially recognised as possessing nuclear arms by
the Nuclear Nonproliferation Treaty (NPT) – with the US and Russia
holding the vast majority between them.
The
first nuclear weapons were developed by the US during World War Two as
part of the Manhattan Project in reaction to the Nazi threat in Germany.
America received cooperation from the UK and Canada.
The latest nation to build nuclear weapons is North Korea, which carried out its first nuclear test in 2006.
It
has since threatened nuclear action against the US and South Korea, and
has broken international law with its testing of powerful nuclear
weapons.
There were thought to be 13,865 nuclear warheads in 2019, down from 14,465 in 2018.
The statistics used in this piece come from the 2019 report from the Stockholm International Peace Research Institute.
The institute notes that ‘deployed warheads’ are those placed on missiles or located on bases with operational forces.
Other warheads relate to those which have been stored or reserve warheads and retired warheads awaiting dismantlement.
All estimates are approximate and figures for North Korea are uncertain and therefore not included in total figures.

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