2. • There are eight sovereign states that have
successfully detonated nuclear weapons.
• Five are considered to be "nuclear-weapon
states" (NWS) under the terms of the Treaty on
the Non-Proliferation of Nuclear Weapons (NPT).
• In order of acquisition of nuclear weapons these
are: the United States, the Russian
Federation (successor state to the Soviet Union),
the United Kingdom, France, and China.
• These five states are the Recognized nuclear
states.
3. Nuclear weapons having states are Categorized
as
• NPT
• Non-NPT Nuclear Powers
• Undeclared Nuclear power
4. List of Nuclear Power Countries Under
NPT
Rank Country Warheads
Active/Total
Year of 1st
Experiment
CTBT
status
1 United States 2150/7700 1945 Signatory
2 Russia 1740/8500 1949 Ratified
3 United
Kingdom
160/225 1952 Ratified
4 France 290/300 1960 Ratified
5 China N.A/240 1964 Signatory
5. Declared Nuclear States
• Since the creation of NPT three states that
were not parties to the Treaty have
conducted nuclear tests, namely India,
Pakistan, and North Korea
• North Korea had been a party to the NPT but
withdrew in 2003.
6. List of Non-NPT Nuclear Powers
Rank Country Warheads
Active/Total
Year of 1st
Experiment
CTBT Status
1 India N.A./ 80–100 1974 Non-signatory
2 Pakistan N.A./ 90–110 1988 Non-signatory
3 North
Korea
N.A./ <10 2006 Non-signatory
7. • While Israel is undeclared power in the world
having total 80-200 weapons .
• USA is the leading nation which has most
nuclear weapons as compared to all the nations.
• It developed these during world war 2 and tested
on Japan in 1945. It has almost 2150 active
weapons.