North Korea's Nuclear Weapons
   HOME

TheInfoList



OR:

North Korea North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korea, Korean Peninsula and borders China and Russia to the north at the Yalu River, Yalu (Amnok) an ...
has a
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon), producing a nuclear exp ...
s program, and, as of 2024, is estimated to have an
arsenal An arsenal is a place where arms and ammunition are made, maintained and repaired, stored, or issued, in any combination, whether privately or publicly owned. Arsenal and armoury (British English) or armory (American English) are mostly ...
of approximately 50
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon), producing a nuclear exp ...
s and sufficient production of
fissile material In nuclear engineering, fissile material is material that can undergo nuclear fission when struck by a neutron of low energy. A self-sustaining thermal chain reaction can only be achieved with fissile material. The predominant neutron energy i ...
for six to seven nuclear weapons per year.Nuclear Weapons: Who Has What at a Glance
Arms Control Association The Arms Control Association is a United States–based nonpartisan membership organization founded in 1971, with the self-stated mission of "promoting public understanding of and support for effective arms control policies." The group publishes ...
(updated August 2020)
North Korea has also stockpiled a significant quantity of
chemical A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combin ...
and
biological weapon Biological agents, also known as biological weapons or bioweapons, are pathogens used as weapons. In addition to these living or replicating pathogens, toxins and Toxin#Biotoxins, biotoxins are also included among the bio-agents. More than 1,2 ...
s. In 2003, North Korea withdrew from the
Treaty on the Non-Proliferation of Nuclear Weapons The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperatio ...
(NPT). Since 2006, the country has conducted six nuclear tests at increasing levels of expertise, prompting the imposition of sanctions.


History

North Korea showed an interest in developing nuclear weapons as early as the 1950s. The nuclear program can be traced back to about 1962, when North Korea committed itself to what it called "all-fortressization", which was the beginning of the hyper-militarized North Korea of today. In 1963, North Korea asked the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
for help in developing nuclear weapons, but was refused. The Soviet Union agreed to help North Korea develop a peaceful nuclear energy program, including the training of nuclear scientists. Later, China, after its nuclear tests, similarly rejected North Korean requests for help with developing nuclear weapons. Soviet engineers took part in the construction of the
Yongbyon Nuclear Scientific Research Center The Nyongbyon Nuclear Scientific Research Center (녕변원자력연구소) is North Korea's major nuclear facility, operating its first nuclear reactors. It is located in Nyongbyon County in North Pyongan Province, about 100 km north of ...
James Clay Moltz and Alexandre Y. Mansourov (eds.):
The North Korean Nuclear Program
'. Routledge, 2000.
and began construction of an IRT-2000
research reactor Research reactors are nuclear fission-based nuclear reactors that serve primarily as a neutron source. They are also called non-power reactors, in contrast to power reactors that are used for electricity production, heat generation, or maritim ...
in 1963, which became operational in 1965 and was upgraded to 8 MW in 1974. In 1979, North Korea began to build a second research reactor in Yongbyon, as well as an ore processing plant and a
fuel rod Nuclear fuel refers to any substance, typically fissile material, which is used by nuclear power stations or other nuclear devices to generate energy. Oxide fuel For fission reactors, the fuel (typically based on uranium) is usually based o ...
fabrication plant. In 1985 North Korea ratified the NPT but did not include the required safeguards agreement with the
IAEA The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 1957 ...
until 1992. In early 1993, while verifying North Korea's initial declaration, the IAEA concluded that there was strong evidence this declaration was incomplete. When North Korea refused the requested special inspection, the IAEA reported its noncompliance to the
UN Security Council The United Nations Security Council (UNSC) is one of the six principal organs of the United Nations (UN) and is charged with ensuring international peace and security, recommending the admission of new UN members to the General Assembly, an ...
. In 1993, North Korea announced its withdrawal from the NPT, but suspended that withdrawal before it took effect. Under the 1994 Agreed Framework, the U.S. government agreed to facilitate the supply of two light water reactors to North Korea in exchange for North Korean disarmament. Such reactors are considered "more proliferation-resistant than North Korea's graphite-moderated reactors", but not "proliferation proof". The Agreed Framework was undermined by a Republican Congress during Clinton's presidency, as Congress denounced the agreement with North Korea, imposed new sanctions on North Korea, and hindered the Clinton administration from providing the supplies to North Korea that were part of the Agreed Framework. Implementation of the Agreed Framework foundered, and in 2002 the Agreed Framework fell apart, with each side blaming the other for its failure. By 2002, Pakistan had admitted that North Korea had gained access to Pakistan's nuclear technology in the late 1990s. Based on evidence from Pakistan, Libya, and multiple statements made by the DPRK government, the United States accused North Korea of noncompliance and halted oil shipments; North Korea later claimed its public confession of guilt had been deliberately misconstrued. By the end of 2002, the Agreed Framework was officially abandoned. In 2003, North Korea again announced its withdrawal from the Nuclear Non-Proliferation Treaty. In 2005, it admitted to having nuclear weapons but vowed to close the nuclear program. On October 9, 2006, North Korea announced it had successfully conducted its first nuclear test. An underground nuclear explosion was detected, its yield was estimated as less than a
kiloton TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. A ton of TNT equivalent is a unit of energy defined by convention to be (). It is the approximate energy released in the det ...
, and some radioactive output was detected.North Korea's first nuclear test
Yield estimates section
On January 6, 2007, the North Korean government further confirmed that it had nuclear weapons. On March 17, 2007, North Korea told delegates at international nuclear talks that it was preparing to shut down its main nuclear facility. The agreement was reached following a series of
six-party talks The six-party talks aimed to find a peaceful resolution to the security concerns as a result of the North Korean nuclear weapons program. There was a series of meetings with six participating states in Beijing: * China * Japan * North Korea ...
, involving North Korea, South Korea, China, Russia, Japan, and the United States begun in 2003. According to the agreement, a list of its nuclear programs would be submitted and the nuclear facility would be disabled in exchange for fuel aid and normalization talks with the United States and Japan. This was delayed from April due to a dispute with the United States over Banco Delta Asia, but on July 14,
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear technology, nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was ...
inspectors confirmed the shutdown of North Korea's Yongbyon nuclear reactor and consequently North Korea began to receive aid. This agreement fell apart in 2009, following a North Korean satellite launch. In April 2009, reports surfaced that North Korea has become a "fully fledged nuclear power", an opinion shared by
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear technology, nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was ...
(IAEA) Director General
Mohamed ElBaradei Mohamed Mostafa ElBaradei (, ; born 17 June 1942) is an Egyptian law scholar and diplomat who served as the vice president of Egypt on an interim basis from 14 July 2013 until his resignation on 14 August 2013. He was the Director General of ...
. On May 25, 2009, North Korea conducted a second nuclear test, resulting in an explosion estimated to be between 2 and 7 kilotons. The 2009 test, like the 2006 test, is believed to have occurred at
Mantapsan Mantapsan (or Mount Mant'ap, ) is a mountain in the south of North Hamgyong Province in North Korea. The granite peak, which reaches an elevation of , is part of the Hamgyong Mountains. It is located on the border between Kilju County, Myonggan Co ...
,
Kilju County Kilju, sometimes romanized as Kilchu, is a county in North Hamgyong province, North Korea. The county seat is Kilju Town. History The area around Kilju was part of the ancient Goguryeo kingdom and was long inhabited by various Jurchen tribes. I ...
, in the north-eastern part of North Korea. This was found by an
earthquake An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they ...
occurring at the test site. In February 2012, North Korea announced that it would suspend uranium enrichment at the
Yongbyon Nuclear Scientific Research Center The Nyongbyon Nuclear Scientific Research Center (녕변원자력연구소) is North Korea's major nuclear facility, operating its first nuclear reactors. It is located in Nyongbyon County in North Pyongan Province, about 100 km north of ...
and not conduct any further tests of nuclear weapons while productive negotiations involving the United States continue. This agreement included a moratorium on long-range missile tests. Additionally, North Korea agreed to allow IAEA inspectors to monitor operations at Yongbyon. The United States reaffirmed that it had no hostile intent toward the DPRK and was prepared to improve bilateral relationships, and agreed to ship humanitarian food aid to North Korea. The United States called the move "important, if limited", but said it would proceed cautiously and that talks would resume only after North Korea made steps toward fulfilling its promise. However, after North Korea conducted a long-range missile test in April 2012, the United States decided not to proceed with the food aid. On February 11, 2013, the
U.S. Geological Survey The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March ...
detected a magnitude 5.1
seismic Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the generation and propagation of elastic ...
disturbance, reported to be a third underground nuclear test. North Korea has officially reported it as a successful nuclear test with a lighter warhead that delivers more force than before but has not revealed the exact yield. Multiple South Korean sources estimated the yield was 6–9 kilotons, while the German
Federal Institute for Geosciences and Natural Resources The Federal Institute for Geosciences and Natural Resources (Bundesanstalt für Geowissenschaften und Rohstoffe, or BGR) is a German agency within the Federal Ministry of Economics and Technology. It acts as a central geoscience consulting insti ...
estimated the yield to have been 40 kilotons. However, the German estimate has since been revised to a yield equivalent of 14 kt when they published their estimations in January 2016.Nordkorea: BGR registriert vermutlichen Kernwaffentest
– BGR, January 6, 2016.
On January 6, 2016, in Korea, the
United States Geological Survey The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on Mar ...
detected a magnitude 5.1 seismic disturbance, reported to be a fourth underground nuclear test. North Korea claimed that this test involved a
hydrogen bomb A thermonuclear weapon, fusion weapon or hydrogen bomb (H-bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lo ...
. This claim has not been verified. A "hydrogen bomb" could refer to several stages of fusion development, ranging from boosted fission devices to true thermonuclear weapons. Within hours, many nations and organizations had condemned the test. Expert U.S. analysts do not believe that a hydrogen bomb was detonated. Seismic data collected so far suggests a 6–9 kiloton yield and that magnitude is not consistent with the power that would be generated by a hydrogen bomb explosion. "What we're speculating is they tried to do a boosted nuclear device, which is an atomic bomb that has a little bit of hydrogen, an isotope in it called
tritium Tritium () or hydrogen-3 (symbol T or H) is a rare and radioactive isotope of hydrogen with a half-life of ~12.33 years. The tritium nucleus (t, sometimes called a ''triton'') contains one proton and two neutrons, whereas the nucleus of the ...
," said
Joseph Cirincione Joseph Cirincione (, (born November 13, 1949) is a national security analyst and author. He served as the president of the Ploughshares Fund, a public grant-making foundation focused on nuclear nonproliferation and conflict resolution. He has o ...
, president of the global security firm Ploughshares Fund. The German source which estimates for all the North Korea's past nuclear test has instead made an initial estimation of 14 kt, which is about the same (revised) yield as its previous nuclear test in 2013. However, the yield estimation for January 2016 nuclear test was revised to 10 kt in the subsequent nuclear test from North Korea.Nordkorea: BGR registriert vermutlichen Kernwaffentest
– BGR (In German), September 9, 2016.
On February 7, 2016, roughly a month after the alleged hydrogen bomb test, North Korea claimed to have put a satellite into
orbit In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an ...
around the Earth. Japanese Prime Minister
Shinzō Abe Shinzo Abe (21 September 1954 – 8 July 2022) was a Japanese politician who served as Prime Minister of Japan and President of the Liberal Democratic Party ( LDP) from 2006 to 2007 and again from 2012 to 2020. He was the longest-serving pri ...
had warned North Korea to not launch the rocket, and if it did and the rocket violated Japanese territory, it would be shot down. Nevertheless, North Korea launched the rocket, leading the United States, Japan, and South Korea to criticize the launch. Despite North Korean claims that the rocket was for peaceful, scientific purposes, it has been heavily criticized as an attempt to perform an
ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
test under the guise of a satellite launch. China also criticized the launch, however urged "the relevant parties" to "refrain from taking actions that may further escalate tensions on the Korean peninsula". A fifth nuclear test occurred on September 9, 2016. This test yield is considered the highest among all five tests thus far, surpassing its previous record in 2013. The South Korean government said that the yield was about 10 kt despite other sources suggesting a yield.North Korea conducts fifth and largest nuclear test – South Korea and Japan
– Reuters, 9 September 2016 5:39am Britain Standard Time
The same German source which has made estimation of all North Korea's previous nuclear tests suggested an estimation of a 25 kiloton yield. Other nations and the
United Nations The United Nations (UN) is the Earth, global intergovernmental organization established by the signing of the Charter of the United Nations, UN Charter on 26 June 1945 with the stated purpose of maintaining international peace and internationa ...
have responded to North Korea's ongoing missile and nuclear development with a variety of sanctions; on March 2, 2016, the
UN Security Council The United Nations Security Council (UNSC) is one of the six principal organs of the United Nations (UN) and is charged with ensuring international peace and security, recommending the admission of new UN members to the General Assembly, an ...
voted to impose additional
sanctions against North Korea A number of country and international bodies have imposed international sanctions against North Korea. Currently, many sanctions are concerned with North Korea's nuclear weapons programme and were imposed after its first nuclear test in 2006. ...
. In 2017, North Korea test-launched two ICBMs, the second of which had sufficient range to reach the continental United States. In September 2017, the country announced a further "perfect" hydrogen bomb test. Until 2022, North Korea's stated policy position was that nuclear weapons "will never be abused or used as a means for preemptive strike", but if there is an "attempt to have recourse to military force against us" North Korea may use their "most powerful offensive strength in advance to punish them". This was not a full
no first use In nuclear ethics and deterrence theory, no first use (NFU) refers to a type of pledge or policy wherein a nuclear power formally refrains from the use of nuclear weapons or other weapons of mass destruction (WMD) in warfare, except for as a se ...
policy. This policy changed in 2022 with a law approved by the
Supreme People's Assembly The Supreme People's Assembly (SPA; ) is the legislature of North Korea. It is ostensibly the highest organ of state power and the only branch of government in North Korea, with all state organs subservient to it under the principle of unified ...
, which states that in the case of an attack against the top leadership or the nuclear command and control system, nuclear attacks against the enemy would be launched automatically. Additionally, the new law indicates that if Kim Jong Un was killed, the authorization of nuclear strikes would pass to a senior official. Since 2023, North Korea has taken a more transparent approach to its nuclear activities, signaling an expansion of its nuclear program. Leader Kim Jong Un unveiled facilities involved in weapons production, including centrifuge halls and small reactors, emphasizing plans to deploy large numbers of tactical nuclear weapons. North Korea is estimated to possess enough material for up to 90 warheads and has reportedly assembled around 50 nuclear weapons. These revelations have heightened international concerns over North Korea's capabilities and the potential threat to the U.S. mainland and its allies.


Nuclear weapons


Overview

The
Korean Central News Agency The Korean Central News Agency (KCNA) () is the state news agency of North Korea. The agency portrays the views of the North Korean government for both domestic and foreign consumption. It was established on December 5, 1946, and now features ...
claims that the "U.S. has long posed nuclear threats to the DPRK" and "the U.S. was seized by a foolish ambition to bring down the DPRK", so it "needed a countermeasure". North Korea has been suspected of maintaining a clandestine nuclear weapons development program since the early 1980s, when it constructed a
plutonium Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four ...
-producing
Magnox Magnox is a type of nuclear power / production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant. It belongs to the wider class of gas-cooled reactors. The ...
nuclear reactor A nuclear reactor is a device used to initiate and control a Nuclear fission, fission nuclear chain reaction. They are used for Nuclear power, commercial electricity, nuclear marine propulsion, marine propulsion, Weapons-grade plutonium, weapons ...
at
Yongbyon Nyŏngbyŏn is a county in North Pyŏngan Province, North Korea. It borders the cities of Kaechŏn and Anju, and covers an area of 504 km2. Description The city was heavily fortified during the 15th century as a result of its strateg ...
. Various diplomatic means have been used by the international community to attempt to limit North Korea's nuclear program to peaceful power generation and to encourage North Korea to participate in international treaties. In May 1992, the
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear technology, nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was ...
's (IAEA) first inspection in North Korea uncovered discrepancies suggesting that the country had reprocessed more plutonium than declared. IAEA requested access to additional information and access to two nuclear waste sites at Yongbyon. North Korea rejected the IAEA request and announced on March 12, 1993, an intention to withdraw from the NPT. In 1994, North Korea pledged, under the Agreed Framework with the United States, to freeze its plutonium programs and dismantle all its nuclear weapons programs in return for the normalization of diplomatic relations and several kinds of assistance, including resources for alternative energy supplies. By 2002, the United States believed North Korea was pursuing both
uranium enrichment Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (23 ...
technology and plutonium reprocessing technologies in defiance of the Agreed Framework. North Korea reportedly told American diplomats in private that they were in possession of nuclear weapons, citing American failures to uphold their own end of the Agreed Framework as a motivating force. North Korea later "clarified" that it did not possess weapons yet, but that it had "a right" to possess them, despite the Agreed Framework. In late 2002 and early 2003, North Korea began to take steps to eject
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear technology, nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was ...
inspectors while re-routing spent
fuel rod Nuclear fuel refers to any substance, typically fissile material, which is used by nuclear power stations or other nuclear devices to generate energy. Oxide fuel For fission reactors, the fuel (typically based on uranium) is usually based o ...
s to be used for plutonium reprocessing for weapons purposes. As late as the end of 2003, North Korea claimed that it would freeze its nuclear program in exchange for additional American concessions, but a final agreement was not reached. North Korea withdrew from the Nuclear Non-Proliferation Treaty in 2003.


2006

On October 9, 2006, North Korea demonstrated its nuclear capabilities with its first underground nuclear test, detonating a plutonium-based device with an estimated yield of 0.2–1 kilotons. The test was conducted at
Punggye-ri Nuclear Test Site Punggye-ri Nuclear Test Site () was the only known nuclear test site of North Korea. Nuclear tests were conducted at the site in October 2006, May 2009, February 2013, January 2016, September 2016, and September 2017. Geography The s ...
in
North Hamgyong Province North Hamgyong Province (Hamgyŏngbukdo, ) is the northernmost province of North Korea. The province was formed in 1896 from the northern half of the former Hamgyong Province. Geography The province is bordered by China (Jilin) to the north, S ...
, and U.S. intelligence officials later announced that analysis of radioactive debris in air samples collected a few days after the test confirmed that the blast had taken place. The UN Security Council condemned the test and announced the imposition of Resolution 1718.


Aftermath of 2006 nuclear test

On January 6, 2007, the North Korean government further confirmed that it had nuclear weapons. In February 2007, following the
six-party talks The six-party talks aimed to find a peaceful resolution to the security concerns as a result of the North Korean nuclear weapons program. There was a series of meetings with six participating states in Beijing: * China * Japan * North Korea ...
disarmament process, Pyongyang agreed to shut down its main nuclear reactor. On October 8, 2008,
IAEA The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 1957 ...
inspectors were forbidden by the North Korean government to conduct further inspections of the site.


2009

On April 25, 2009, the North Korean government announced the country's nuclear facilities had been reactivated, and that spent fuel reprocessing for arms-grade plutonium had been restored. On May 25, 2009, North Korea conducted its second underground nuclear test. The U.S. Geological Survey calculated its origin in proximity of the site of the first nuclear test. The test, estimated at 2 to 7 kilotons, was more powerful than the previous test. The same day, a successful short-range missile test was also conducted.


2010

In May 2010, the North Korean government claimed to have successfully performed
nuclear fusion Nuclear fusion is a nuclear reaction, reaction in which two or more atomic nuclei combine to form a larger nuclei, nuclei/neutrons, neutron by-products. The difference in mass between the reactants and products is manifested as either the rele ...
. Although the claim was largely dismissed at the time, a 2012 analysis of radioisotopes suggested that North Korea may have performed two nuclear tests involving fusion. The paper was met with skepticism, as subsequent analysis of seismic data suggested no tests took place. In 2014, a study using seismic data found evidence for nuclear testing but a 2016 study once again dismissed claims of nuclear testing, suggesting that the seismic data was indicative of a minor earthquake. In 2024, a study dismissed the arguments in the 2016 study for a small earthquake and presented new seismic evidence confirming the occurrence of a small nuclear test on May 12 2010 as suggested in the 2014 study.


2013

On February 12, monitors in Asia picked up unusual seismic activity at a North Korean facility at 11:57 (02:57 GMT), later determined to be an artificial quake with an initial
magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of ...
4.9 (later revised to 5.1). In The Korean Central News Agency subsequently said that the country had detonated a miniaturized nuclear device with "greater explosive force" in an underground test. According to the Korea Institute of Geoscience and Mineral Resources, the estimated yield was 7.7–7.8 kilotons. Other researchers estimate the yield to have been 12.2 ± 3.8 kilotons.


December 2015 hydrogen bomb claim

In December 2015,
Kim Jong Un Kim Jong Un (born 8 January 1983 or 1984) is a North Korean politician and dictator who has served as supreme leader of North Korea since 2011 and general secretary of the Workers' Party of Korea (WPK) since 2012. He is the third son of Kim ...
suggested that the country had the capacity to launch a
hydrogen bomb A thermonuclear weapon, fusion weapon or hydrogen bomb (H-bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lo ...
, a device of considerably more power than conventional
atomic bomb A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission or atomic bomb) or a combination of fission and fusion reactions (thermonuclear weapon), producing a nuclear expl ...
s used in previous tests. The remark was met with skepticism from the
White House The White House is the official residence and workplace of the president of the United States. Located at 1600 Pennsylvania Avenue Northwest (Washington, D.C.), NW in Washington, D.C., it has served as the residence of every U.S. president ...
and from South Korean officials.


2016


= First claimed North Korean hydrogen bomb test

= On January 7, after reports of a magnitude 5.1 earthquake originating in northeast North Korea at 10:00:01 UTC+08:30, the country's regime released statements that it had successfully tested a hydrogen bomb. Whether this was in fact a hydrogen bomb has yet to be proven. Experts have cast doubt on this claim. A South Korean spy expert suggested that it may have been an atomic bomb and not a hydrogen bomb. Experts in several countries, including South Korea have expressed doubts about the claimed technology because of the relatively small size of the explosion. Senior Defense Analyst Bruce W. Bennett of research organization RAND told the BBC that "Kim Jong-un is either lying, saying they did a hydrogen test when they didn't, they just used a little bit more efficient fission weapon – or the hydrogen part of the test really didn't work very well or the fission part didn't work very well."


= Aftermath of claimed North Korean hydrogen bomb test

= On March 9, 2016, North Korea released a video of Kim Jong Un visiting a missile factory. The international community was skeptical,
IHS Jane's Janes is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane. History Jane's Information Group was founded in 1898 by Fred ...
Karl Dewey said that "It is possible that the silver sphere is a simple atomic bomb. But it is not a hydrogen bomb." Furthermore, he said "a hydrogen bomb would not only be in two parts but also be a different shape". Nations across the world, as well as
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
and the UN, spoke out against the tests as destabilizing, as a danger to international security and as a breach of UN Security Council resolutions. China, one of North Korea's allies, also denounced the test.


= First nuclear warhead test explosion

= On September 9, 2016, a 5.3 seismic tremor was detected by seismographs in surrounding countries, after which North Korea confirmed it conducted another nuclear test. North Korea stated that this test has enabled them to confirm that its warhead can be mounted to a missile and to verify the warhead's power. It was previously doubted that North Korea could pair the nuclear warhead and missile together, but South Korean experts started to believe that North Korea can accomplish this goal within a few years after the September 9 nuclear test.


2017

On February 18, 2017, China announced that it was suspending all imports of coal from North Korea as part of its effort to enact United Nations Security Council sanctions aimed at stopping the country's nuclear weapons and ballistic-missile program. On March 6, 2017, North Korea launched four ballistic missiles from the Tongchang-ri region towards the Sea of Japan. The launch was condemned by the United Nations as well as South Korea. The move prompted US Secretary of State Rex Tillerson to embark on a diplomatic mission ten days later to Japan, South Korea and China, in an effort to address the heightened international tension in the region. On April 13, 2017, White House representative Nick Rivero was quoted saying the United States was "very close" to engaging in some sort of retaliation towards North Korea. President Trump commented on North Korea by saying they will fight the war on terrorism no matter the cost. On April 15, 2017, at the yearly major public holiday also known in the country as the Day of the Sun, North Korea staged a massive military parade to commemorate the 105th birth anniversary of Kim Il Sung, the country's founder and grandfather of current leader, Kim Jong Un. The parade took place amid hot speculation in the United States, Japan, and South Korea that the country would also potentially test a sixth nuclear device, but failed to do so. The parade did publicly display, for the first time, two new intercontinental ballistic missile-sized canisters as well as submarine-launched ballistic missiles and a land-based version of the same. On April 16, 2017, hours after the military parade in Pyongyang, North Korea attempted to launch a ballistic missile from a site near the port of
Sinpo Sinpo () is a port city on the coast of the Sea of Japan in central South Hamgyong Province, South Hamgyŏng province, North Korea. According to the last available census, approximately 152,759 people reside there. Administrative divisions Sinp ...
, on the country's east coast. The missile exploded seconds after launch. Later that month, after a visit to Washington by the top Chinese leader, the US State Department announced that North Korea was likely to face economic sanctions from China if it conducted any further tests. On April 28, 2017, North Korea launched an unidentified ballistic missile over Pukchang airfield, in North Korean territory. It blew up shortly after take-off at an altitude of approximately 70 km (44 mi). On July 4, 2017, North Korea launched Hwasong-14 from Banghyon airfield, near Kusong, in a lofted trajectory it claims lasted 39 minutes for 930 km (578 mi), landing in the waters of the Japanese exclusive economic zone. US Pacific Command said the missile was aloft for 37 minutes, meaning that in a standard trajectory it could have reached all of Alaska, a distance of 6,690 km (4,160 mi).
zh-en translation
/ref> By targeting the deep waters in the Sea of Japan, North Korea was ensuring that American or Japanese divers would encounter difficulties when attempting to recover Hwasong-14's engine. Equally, North Korea was not attempting to recover any re-entry debris either, which South Korea pointed out is an indication that this first launch was of an ICBM which was far from ready for combat. As of July 2017, the U.S. estimated that North Korea would have a reliable nuclear-capable intercontinental ballistic missile (ICBM) by early 2018. On July 28, North Korea launched a second, apparently more advanced, ICBM, with altitude around 3,700 km (2,300 mi), that traveled 1,000 km (620 mi) down range; analysts estimated that it was capable of reaching the continental United States. Aerospace engineer and weapons analyst Dr. John Schilling estimates the current accuracy of the North's Hwasong-14 as poor, at the mooted ranges which threaten US cities. Michael Elleman points out that July 28, 2017 missile re-entry vehicle broke up on re-entry; further testing would be required. On August 8, 2017 ''The Washington Post'' reported that the
Defense Intelligence Agency The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense (DoD) specializing in military intelligence. A component of the Department of Defense and the United States In ...
, in a confidential assessment, stated that North Korea has sufficiently miniaturized a nuclear warhead to fit inside one of its long-range missiles. On August 12 ''The Diplomat'' reported that the
Central Intelligence Agency The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
, in a confidential assessment from early August, has concluded that the reentry vehicle in the July 28 test of Hwasong-14 did not survive atmospheric reentry due to apogee of 3,700 kilometers which caused structural stresses in excess of what an ICBM would have had in minimum energy trajectory. The CIA also concluded that North Korean reentry vehicle is likely advanced enough that it would likely survive reentry under normal minimum energy trajectory. On September 3, 2017, North Korea claimed to have successfully tested a thermonuclear bomb, also known as a hydrogen bomb. Corresponding seismic activity similar to an earthquake of magnitude 6.3 was reported by the
USGS The United States Geological Survey (USGS), founded as the Geological Survey, is an government agency, agency of the United States Department of the Interior, U.S. Department of the Interior whose work spans the disciplines of biology, geograp ...
, making the blast around 10 times more powerful than previous detonations by the country. Later the bomb yield was estimated to be 250 kilotons, based on further study of the seismic data. The test was reported to be "a perfect success" by North Korean authorities.
Jane's Information Group Janes is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane. History Jane's Information Group was founded in 1898 by Fred T. ...
estimates the explosive payload of the North Korean thermonuclear/hydrogen
Teller-Ulam A thermonuclear weapon, fusion weapon or hydrogen bomb (H-bomb) is a second-generation nuclear weapon design Nuclear weapons design are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to det ...
type bomb to weigh between . On November 20, 2017, U.S. President Donald Trump announced that North Korea was re-listed by the
State Department The United States Department of State (DOS), or simply the State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs o ...
as a state sponsor of terrorism. Japan and South Korea welcomed the move as a method of increasing pressure on North Korea to negotiate about denuclearization. On November 28, 2017, North Korea fired an intercontinental ballistic missile in the first such launch from the country in more than two months. The missile, believed by the U.S. military to be an ICBM, was launched from Sain Ni and flew roughly 1,000 km (620 mi) before landing in the
Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it ...
. After North Korea claimed that the missile was capable of "carrying super-heavy uclearwarhead and hitting the whole mainland of the U.S.", Kim-Jong-Un announced that they had "finally realized the great historic cause of completing the state nuclear force", putting them in a position of strength to push the United States into talks.


2019

In August 2019, Japan has upgraded its estimate of North Korea's nuclear weapons capability in an upcoming annual Defence White Paper, saying it seems Pyongyang has achieved the miniaturization of warheads. The defence report will maintain Japan's contention that North Korea's nuclear and ballistic missile programs pose a "serious and imminent threat" to its security after recent meetings between Donald Trump and the North's leader, Kim Jong Un, failed to make progress on denuclearisation.


2020

Bruce Klingner of the U.S.-based Heritage Foundation estimated, in June 2020, that North Korea has likely built "eight or more additional nuclear weapons" since the 2018 summit. On October 10, 2020, North Korea unveiled a massive
ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
during a military parade for the 75th anniversary of the
Workers' Party of Korea The Workers' Party of Korea (WPK), also called the Korean Workers' Party (KWP), is the sole ruling party of North Korea. Founded in 1949 from a merger between the Workers' Party of North Korea and the Workers' Party of South Korea, the WPK is ...
, with
CNN Cable News Network (CNN) is a multinational news organization operating, most notably, a website and a TV channel headquartered in Atlanta. Founded in 1980 by American media proprietor Ted Turner and Reese Schonfeld as a 24-hour cable ne ...
reporting that military analysts believe it is one of the world's largest road-mobile ballistic missiles.


2022

In the first 4 weeks of 2022, North Korea conducted 7 missile tests. Missiles tested included a hypersonic glide vehicle, an intermediate range ballistic missile (IRBM) and various cruise missiles. On September 9, 2022, North Korea passed a law to declare itself a
nuclear weapons state Nine sovereign states are generally understood to possess nuclear weapons, though only eight formally acknowledge possessing them. United Nations Security Council#Permanent members, Five are considered to be nuclear-weapon states (NWS) unde ...
and rejected any possibility of denuclearisation.


2023

On March 24, 2023, North Korea unveiled the tactical nuclear bomb with at least 10 warheads shown with an estimated diameter from 40 to 50 centimeters as reported by the South Korean media. Hwasong-11A (KN-23) and KN-25 ballistic missiles are capable of carrying it. In December 2023, North Korea launched an
ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
(a Hwasong-18) in a test fire which according to South Korea and Japan would be capable of hitting any target within the United States mainland.


2024

In April 2024, North Korea claimed to have tested a new command and control system in a simulated nuclear counterattack. On October 30, North Korea launched its first intercontinental ballistic missile since December 2023. The South Korean
Joint Chiefs of Staff The Joint Chiefs of Staff (JCS) is the body of the most senior uniformed leaders within the United States Department of Defense, which advises the president of the United States, the secretary of defense, the Homeland Security Council and ...
stated that the launch may have been timed to the 2024 United States elections. The missile traveled for about 86 minutes before landing off of North Korea's east coast.


Fissile material production


Plutonium facilities

North Korea's
nuclear reactor A nuclear reactor is a device used to initiate and control a Nuclear fission, fission nuclear chain reaction. They are used for Nuclear power, commercial electricity, nuclear marine propulsion, marine propulsion, Weapons-grade plutonium, weapons ...
s are located at the
Yongbyon Nuclear Scientific Research Center The Nyongbyon Nuclear Scientific Research Center (녕변원자력연구소) is North Korea's major nuclear facility, operating its first nuclear reactors. It is located in Nyongbyon County in North Pyongan Province, about 100 km north of ...
, about 90 km north of
Pyongyang Pyongyang () is the Capital city, capital and largest city of North Korea, where it is sometimes labeled as the "Capital of the Revolution" (). Pyongyang is located on the Taedong River about upstream from its mouth on the Yellow Sea. Accordi ...
. * One Soviet-supplied IRT-2000 research reactor, completed in 1967. Uranium irradiated in this reactor was used in North Korea's first plutonium separation experiments in 1975. Nevertheless, the primary purpose of the reactor is not to produce plutonium and North Korea has had trouble acquiring enough fuel for constant operation. The
U.S. Department of Energy The United States Department of Energy (DOE) is an executive department of the U.S. federal government that oversees U.S. national energy policy and energy production, the research and development of nuclear power, the military's nuclear we ...
estimated that this reactor could have been used to produce up to 1–2 kg of plutonium, though the Joint Atomic Energy Intelligence Committee said that the amount was no more than a few hundred grams. * A newer nuclear reactor with a capacity of 5 
MWe The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor o ...
. This gas-graphite moderated
Magnox Magnox is a type of nuclear power / production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant. It belongs to the wider class of gas-cooled reactors. The ...
type reactor is North Korea's main reactor, where practically all of its plutonium has been produced. A full core consists of 8,000 fuel rods and can yield a maximum of 27–29 kg of plutonium if left in the reactor for optimal burnup. The North Korean Plutonium Stock, Mid-2006, is estimated to be able to produce 0.9 grams of plutonium per thermal megawatt every day of its operation. The material required to make a single bomb is approximately four to eight kilograms. Often, North Korea has unloaded the reactor before reaching the maximum burnup level. There are three known cores which were unloaded in 1994 (under IAEA supervision in accordance with the Agreed Framework), 2005, and 2007. :In 1989, the 5 MWe reactor was shut down for a period of seventy to a hundred days. In this time it is estimated that up to fifteen kilograms of plutonium could have been extracted. In 1994, North Korea unloaded its reactors again. The IAEA had these under full surveillance until later being denied the ability to observe North Korean power plants. Under normal operation, the reactor can produce about 6 kg of plutonium per year although the reactor would need to be shut down and the fuel rods extracted to begin the plutonium separation process. Hence, plutonium separation stages alternate with plutonium production stages. Reprocessing (also known as separation) is known to have taken place in 2003 for the first core and 2005 for the second core. * Two
Magnox Magnox is a type of nuclear power / production reactor that was designed to run on natural uranium with graphite as the moderator and carbon dioxide gas as the heat exchange coolant. It belongs to the wider class of gas-cooled reactors. The ...
reactors (50 
MWe The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor o ...
and 200 MWe), under construction at Yongbyon and Taechon. If completed, 50 MWe reactor would be capable of producing 60 kg of plutonium per year, enough for approximately 10 weapons and 200 MWe reactor 220 kg of plutonium annually, enough for approximately 40 weapons. Construction was halted in 1994 about a year from completion in accord with the Agreed Framework, and by 2004 the structures and pipework had deteriorated badly. * Fuel reprocessing facility that recovers
uranium Uranium is a chemical element; it has chemical symbol, symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Ura ...
and
plutonium Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four ...
from
spent fuel Spent nuclear fuel, occasionally called used nuclear fuel, is nuclear fuel that has been irradiated in a nuclear reactor (usually at a nuclear power plant). It is no longer useful in sustaining a nuclear reaction in an ordinary thermal reactor and ...
using the
PUREX PUREX (plutonium uranium reduction extraction) is a chemical method used to purify fuel for nuclear reactors or nuclear weapons. It is based on liquid–liquid extraction ion-exchange. PUREX is the '' de facto'' standard aqueous nuclear reproc ...
process. Based on extended Eurochemic reprocessing plant design at the Mol-Dessel site in Belgium. In 1994 its activity was frozen in accord with the Agreed Framework. On April 25, 2009, North Korean news agency KCNA, reported the resumption of reprocessing of spent fuel to recover plutonium. On March 12, 1993, North Korea said that it planned to withdraw from the
Nuclear Non-Proliferation Treaty The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperatio ...
(NPT) and refused to allow IAEA inspectors access to its nuclear sites. By 1994, the United States believed that North Korea had enough reprocessed plutonium to produce about 10 bombs with the amount of plutonium increasing. Faced with diplomatic pressure after UN Security Council Resolution 825 and the threat of American military
air strike An airstrike, air strike, or air raid is an offensive operation carried out by aircraft. Air strikes are delivered from aircraft such as blimps, balloons, fighter aircraft, attack aircraft, bombers, attack helicopters, and Unmanned combat aerial ...
s against the reactor, North Korea agreed to dismantle its plutonium program as part of the Agreed Framework in which South Korea and the United States would provide North Korea with
light water reactor The light-water reactor (LWR) is a type of thermal-neutron reactor that uses normal water, as opposed to heavy water, as both its coolant and neutron moderator; furthermore a solid form of fissile elements is used as fuel. Thermal-neutron react ...
s and
fuel oil Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil (bunker fuel), marine f ...
until those reactors could be completed. Because the light water reactors would require
enriched uranium Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (23 ...
to be imported from outside North Korea, the amount of reactor fuel and waste could be more easily tracked, making it more difficult to divert nuclear waste to be reprocessed into plutonium. However, the Agreed Framework was mired in difficulties, with each side blaming the other for the delays in implementation; as a result, the light water reactors were never finished. In late 2002, after fuel aid was suspended, North Korea returned to using its old reactors. In 2006, there were eight sites identified as potential test explosion sites for current (and future) tests according to a statement by the South Korean Parliament. These sites are distinguished from a number of other nuclear materials production facilities in that they are thought to be most closely identified with a military, or potentially military purpose: 1. Hamgyong Bukdo (North Hamgyong) Province – two sites: * Chungjinsi – Nuclear fuel storage site, military base and unidentified underground facility * Kiljugun – Extensive military buildup with motorized troop formations and construction of new advanced underground facility – Site of May 25, 2009, Nuclear Test. * Phunggyere – Site of October 9, 2006, Nuclear Test 2. Chagangdo Province – one site: Kanggyesi – Production center of North Korea's advanced equipment and munitions since 1956. Also, extensive intelligence of highly advanced underground facility. 3. Pyongan Bukdo (North Pyongan) Province – four sites: * Yongbyonsi – 2 Sites – Location of Yongbyon Nuclear Research Center, and the facility's Experimental Test Explosion facility and two unidentified underground facilities. In addition, there is a gas-graphite reactor, HE test site, nuclear fuel fabrication site, nuclear waste storage site * Kusungsi – Between 1997 and September 2002, approximately 70 test explosions of North Korean munitions took place. Also, existence of underground facility * Taechongun – 200MWe Nuclear Energy Plant construction site. Location of unidentified underground facility and nuclear arms/energy related facilities known to exist 4. Pyongan Namdo (South Pyongan) Province – one site: Pyongsungsi – Location of National Science Academy and extensive underground facility whose purpose is not known.


Highly enriched uranium program

North Korea possesses uranium mines containing an estimated 4 million tons of high-grade uranium ore. Prime minister
Benazir Bhutto Benazir Bhutto (21 June 1953 – 27 December 2007) was a Pakistani politician who served as the 11th prime minister of Pakistan from 1988 to 1990, and again from 1993 to 1996. She was also the first woman elected to head a democratic governmen ...
of Pakistan allegedly, through Pakistan's former top scientist,
Abdul Qadeer Khan Abdul Qadeer Khan (1 April 1936 – 10 October 2021) was a Pakistani Nuclear physics, nuclear physicist and metallurgist, metallurgical engineer. He is colloquially known as the "father of Pakistan and weapons of mass destruction, Pakistan's ...
, supplied key data, stored on CDs, on uranium enrichment and information to North Korea in exchange for missile technology around 1990–1996, according to U.S.
intelligence Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as t ...
officials. President
Pervez Musharraf Pervez Musharraf (11 August 1943 – 5 February 2023) was a Pakistani general and politician who served as the tenth president of Pakistan from 2001 to 2008. Prior to his career in politics, he was a four-star general and appointed as ...
and Prime minister Shaukat Aziz acknowledged in 2005 that Khan had provided centrifuges and their designs to North Korea. In May 2008, Khan, who had previously confessed to supplying the data on his own initiative, retracted his confession, claiming that the Pakistan Government forced him to be a "scapegoat". He also claimed that North Korea's nuclear program was well advanced before his visits to North Korea. Highly enriched uranium (HEU) program was publicized in October 2002 when the United States asked North Korean officials about the program. Under the Agreed Framework, North Korea explicitly agreed to freeze plutonium programs (specifically, its "graphite moderated reactors and related facilities"). The agreement also committed North Korea to implement the Joint Declaration on the Denuclearization of the Korean Peninsula, in which both Koreas committed not to have enrichment or reprocessing facilities. The United States argued North Korea violated its commitment not to have enrichment facilities. In December 2002, claiming North Korean non-compliance, the United States persuaded the KEDO Board to suspend fuel oil shipments, which led to the end of the Agreed Framework. North Korea responded by announcing plans to reactivate a dormant nuclear fuel processing program and power plant north of Pyongyang. North Korea soon thereafter expelled United Nations inspectors and announced a unilateral "withdrawal" from the Non-Proliferation Treaty. In 2007, a Bush administration official assessed that, while there was still a "high confidence" that North Korea acquired materials that could be used in a "production-scale" uranium program, there is only a "mid-confidence" level such a production-scale uranium (rather than merely plutonium) program exists. Construction of the probable first uranium enrichment facility started in 2002 at a site known as Kangson/Chollima by US intelligence, and could have been completed and developing or operating initial gas centrifuge cascades in 2003. The facility was suspected by US intelligence for many years. The Pyongsan Uranium Mine and Concentration Plant in Pyongsan is reported to be where
uranium ore Uranium ore deposits are economically recoverable concentrations of uranium within Earth's crust. Uranium is one of the most common Chemical element, elements in Earth's crust, being 40 times more common than silver and 500 times more common than ...
is turned into
yellowcake Yellowcake (also called urania) is a type of powdered uranium concentrate obtained from leach solutions, in an intermediate step in the processing of uranium ores. It is a step in the processing of uranium after it has been mined but before ...
. CNN reported on September 15, 2021, that North Korea is expanding uranium enrichment facility at Yongbyon with 1000 square meter expansion for additional 1000 centrifuges that would increase output of highly enriched uranium by up to 25% yearly and if centrifuges were to be replaced with upgraded centrifuges, increase in HEU production would be substantial according to Jeffrey Lewis, weapons expert and professor at Middlebury Institute of International Studies.


Stockpile estimates and projections


RECNA

In June 2020, the Research Center for Nuclear Weapons Abolition at Nagasaki University estimated that North Korea had as many as 35 nuclear weapons in its arsenal.


Bulletin of the Atomic Scientists

As of January 8, 2018, Hans M. Kristensen and Robert S. Norris of the
Federation of American Scientists The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure. FAS was founded in 1945 by a group of scient ...
published in the
Bulletin of the Atomic Scientists The ''Bulletin of the Atomic Scientists'' is a nonprofit organization concerning science and global security issues resulting from accelerating technological advances that have negative consequences for humanity. The ''Bulletin'' publishes conte ...
that they "cautiously estimate that North Korea may have produced enough fissile material to build between 30 and 60 nuclear weapons and that it might possibly have assembled 10 to 20."


Defense Intelligence Agency

On August 8, 2017, the ''
Washington Post ''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington m ...
'' reported recent analysis completed the previous month by the U.S.
Defense Intelligence Agency The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense (DoD) specializing in military intelligence. A component of the Department of Defense and the United States In ...
which concluded that North Korea had successfully produced a miniaturized nuclear warhead that can fit in missiles and could have up to 60 nuclear warheads in its inventory. By 2019 the DIA estimated that North Korea had accrued a stockpile of 65 weapons' worth of fissile material and that the country was producing as much as twelve weapons' worth of fissile material annually. U.S. intelligence also assessed that North Korea had built around 30 fissile material cores for use in nuclear weapons, including four-to-six two-stage thermonuclear weapons.


Siegfried S. Hecker

On August 7, 2017, Siegfried S. Hecker, former director of the
Los Alamos National Laboratory Los Alamos National Laboratory (often shortened as Los Alamos and LANL) is one of the sixteen research and development Laboratory, laboratories of the United States Department of Energy National Laboratories, United States Department of Energy ...
who has visited North Korea nuclear facilities many times on behalf of the U.S., estimated that North Korea's stockpile of plutonium and highly enriched uranium was probably sufficient for 20 to 25 nuclear weapons. He assessed that North Korea had developed a miniaturized warhead suitable for medium-range missiles, but would need further tests and development to produce a smaller and more robust warhead suitable for an
intercontinental ballistic missile An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
(ICBM) and re-entry into the atmosphere. He considered the warhead as the least developed part of North Korea's plans for an ICBM. In February 2019, Hecker estimated that North Korea's stockpile of weapons-grade material was sufficient for 35 to 37 nuclear weapons.


Institute for Science and International Security

For 2013, the
Institute for Science and International Security The Institute for Science and International Security (ISIS) is a nonprofit, non-governmental institution to inform the public about "science and policy issues affecting international security". Founded in 1993, the group is led by founder and f ...
gave a mid-range estimate of 12 to 27 "nuclear weapon equivalents", including plutonium and uranium stockpiles. By 2016, North Korea was projected to have 14 to 48 nuclear weapon equivalents. The estimate was dropped to 13 to 30 nuclear weapon equivalents in 2017, but was increased to as much as 60 equivalents later in August of the same year. (For uranium weapons, each weapon is assumed to contain 20 kilograms of weapons-grade uranium.) An updated estimate of nuclear arsenal in 2023 has been made with range of between 35 and 65 nuclear warheads in North Korean inventory.


FAS

As of 2012, the
Federation of American Scientists The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure. FAS was founded in 1945 by a group of scient ...
estimated North Korea had fewer than 10 plutonium warheads. In its "Nuclear Notebook" on North Korean nuclear capabilities, published in January 2018, FAS estimated that North Korea had sufficient fissile material for 30 to 60 nuclear weapons. However, the report stated that North Korea had assembled 10 to 20 warheads at most, with most of those warheads likely being single-stage fission weapons with yields of 10 to 20 kilotons. In the 2024 Nuclear Notebook, FAS estimated that North Korea had produced sufficient fissile material for up to 90 nuclear weapons and that up to 50 weapons had potentially been assembled. It was estimated that North Korea was capable of adding sufficient fissile material to produce an additional six weapons annually.


SIPRI

According to the Stockholm International Peace Research Institute, North Korea maintains an active but highly opaque nuclear weapon programme. SIPRI estimates that, as of January 2024, North Korea possessed around 50 nuclear weapons, but that it probably possessed sufficient fissile material for an approximate total of up to 90 nuclear devices, depending on warhead design.


Korea Institute for Defense Analyses

In 2023, the South Korean government think tank Korea Institute for Defense Analyses published a report estimating that North Korea has between 80 and 90 nuclear warheads with up to 166 warheads by 2030 and a goal to increase to 300.


Chemical and biological weapons

North Korea began to develop its own
chemical industry The chemical industry comprises the companies and other organizations that develop and produce industrial, specialty and other chemicals. Central to the modern world economy, the chemical industry converts raw materials ( oil, natural gas, air, ...
and
chemical weapon A chemical weapon (CW) is a specialized munition that uses chemicals formulated to inflict death or harm on humans. According to the Organisation for the Prohibition of Chemical Weapons (OPCW), this can be any chemical compound intended as ...
(CW) program in 1954, immediately following the end of the
Korean War The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
. However, substantial progress was not made until the 1960s, when
Kim Il Sung Kim Il Sung (born Kim Song Ju; 15 April 1912 – 8 July 1994) was a North Korean politician and the founder of North Korea, which he led as its first Supreme Leader (North Korean title), supreme leader from North Korea#Founding, its establishm ...
"issued a 'Declaration for Chemicalization' whose aim was to further develop an independent chemical industry capable of supporting various sectors of its economy, as well as support chemical weapons production" and established North Korea's Nuclear and Chemical Defense Bureau.North Korea: Chemical
Nuclear Threat Initiative The Nuclear Threat Initiative, generally referred to as NTI, is a non-profit organization located in Washington, D.C. NTI was founded in 2001 by former U.S. Senator Sam Nunn and philanthropist Ted Turner and describes itself as a "a nonprofit, ...
(last updated December 2016).
In the late 1960s and early 1970s, North Korea received Soviet and Chinese aid in developing its chemical industry. In 1979, the U.S.
Defense Intelligence Agency The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense (DoD) specializing in military intelligence. A component of the Department of Defense and the United States In ...
believed that North Korea "had only a defensive CW capability." It is unclear when North Korea "acquired the capability for independent CW production"; estimates range from the 1970s to early 1980s. However, by the late 1980s, North Korea's CW capabilities had expanded; the South Korean Ministry of National Defense reported in 1987 that the North "possessed up to 250 metric tons of chemical weapons" including
mustard gas Mustard gas or sulfur mustard are names commonly used for the organosulfur compound, organosulfur chemical compound bis(2-chloroethyl) sulfide, which has the chemical structure S(CH2CH2Cl)2, as well as other Chemical species, species. In the wi ...
(a
blister agent A blister agent (or vesicant) is a chemical compound that causes severe skin, eye and mucosal pain and irritation in the form of severe chemical burns resulting in fluid filled blisters. Named for their ability to cause vesication, blister a ...
) and some
nerve agent Nerve agents, sometimes also called nerve gases, are a class of organic chemistry, organic chemicals that disrupt the mechanisms by which nerves transfer messages to organs. The disruption is caused by the blocking of acetylcholinesterase (ACh ...
s. In 2009 the
International Crisis Group The International Crisis Group (ICG; also known as the Crisis Group) is a global non-profit, non-governmental organisation founded in 1995. It is a think tank, used by policymakers and academics, conducting research and analysis on global crises. ...
reported that the consensus expert view was that North Korea had a stockpile of about 2,500 to 5,000
metric ton The tonne ( or ; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the sh ...
s of chemical weapons, including
mustard gas Mustard gas or sulfur mustard are names commonly used for the organosulfur compound, organosulfur chemical compound bis(2-chloroethyl) sulfide, which has the chemical structure S(CH2CH2Cl)2, as well as other Chemical species, species. In the wi ...
,
sarin Sarin (NATO designation GB nerve_agent#G-series.html" ;"title="hort for nerve agent#G-series">G-series, "B" is an extremely toxic organophosphorus compound.nerve agent Nerve agents, sometimes also called nerve gases, are a class of organic chemistry, organic chemicals that disrupt the mechanisms by which nerves transfer messages to organs. The disruption is caused by the blocking of acetylcholinesterase (ACh ...
s. The South Korean Ministry of National Defense had the same estimate in 2010. In 2014, the South Korean Defense Ministry estimated that "the North had stockpiled 2,500 to 5,000 tons of chemical weapons and had a capacity to produce a variety of biological weapons."Richard C. Paddock, Choe Sang-Hun & Nicholas Wade
In Kim Jong-nam's Death, North Korea Lets Loose a Weapon of Mass Destruction
''New York Times'' (February 24, 2017).
In 2015, the
U.S. Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an executive department of the U.S. federal government charged with coordinating and supervising the six U.S. armed services: the Army, Navy, Marines, Air Force, Space Force, t ...
reported to Congress that North Korea's CW program "likely possesses a CW stockpile" and likely had "the capability to produce nerve, blister, blood, and choking agents." The report also found that "North Korea probably could employ CW agents by modifying a variety of conventional munitions, including artillery and ballistic missiles. In addition, North Korean forces are prepared to operate in a contaminated environment; they train regularly in chemical defense operations." The report indicated that North Korea "continues to develop its biological research and development capabilities" and "may consider the use of biological weapons as an option, contrary to its obligations under the Biological and Toxins Weapons Convention." North Korea is a signatory to the
Geneva Protocol The Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or other Gases, and of Bacteriological Methods of Warfare, usually called the Geneva Protocol, is a treaty prohibiting the use of chemical and biological weapons in ...
, which prohibits the use of chemical weapons in warfare. North Korea is also a signatory to the
Biological Weapons Convention The Biological Weapons Convention (BWC), or Biological and Toxin Weapons Convention (BTWC), is a disarmament treaty that effectively bans Biological weapons, biological and toxin weapons by prohibiting their development, production, acquisition, ...
(BWC). Although the nation has signed the BWC, it "has failed to provide a BWC Confidence-Building Measure declaration since 1990." North Korea is not a
party A party is a gathering of people who have been invited by a Hospitality, host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will oft ...
to the
Chemical Weapons Convention The Chemical Weapons Convention (CWC), officially the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction, is an arms control treaty administered by the Organisation for ...
(CWC). It is one of four countries that have not ratified the CWC (the others are Israel, Egypt, and
South Sudan South Sudan (), officially the Republic of South Sudan, is a landlocked country in East Africa. It is bordered on the north by Sudan; on the east by Ethiopia; on the south by the Democratic Republic of the Congo, Uganda and Kenya; and on the ...
). North Korea has refused to acknowledge possessing chemical weapons, as called for by
United Nations Security Council Resolution 1718 United Nations Security Council Resolution 1718 was adopted unanimously by the United Nations Security Council on October 14, 2006. The resolution, passed under Chapter VII, Article 41, of the UN Charter, imposes a series of economic and comme ...
, passed in 2006. After the 2010 bombardment of Yeonpyeong (in which North Korea attacked Yeonpyeongdo with conventional weapons, killing a number of civilians), the National Emergency Management Agency of South Korea distributed 1,300 gas masks to South Koreans living in the western border (a flashpoint for conflict); the agency also distributed another 610,000 gas masks to members of the South Korean
civil defense Civil defense or civil protection is an effort to protect the citizens of a state (generally non-combatants) from human-made and natural disasters. It uses the principles of emergency management: Risk management, prevention, mitigation, prepara ...
corps, which numbers 3.93 million. The agency also announced the renovation of underground emergency shelters. Gas masks are effective against some chemical agents, but not against blister agents such as mustard gas,
Lewisite Lewisite (L) (A-243) is an organoarsenic compound. It was once manufactured in the United States, Japan, Germany and the Soviet Union for use as a Chemical warfare, chemical weapon, acting as a vesicant (blister agent) and lung irritant. Although ...
, and
Phosgene oxime Phosgene oxime, or CX, is an organic compound with the formula . It is a potent chemical weapon, specifically a nettle agent. The compound itself is a colorless solid, but impure samples are often yellowish liquids. It has a strong, disagreeable ...
, which North Korea is thought to have in its stockpiles. In October 2013, South Korea and the United States "agreed to build a joint surveillance system to detect biochemical agents along the demilitarized zone" and to share information. Also in 2015, Melissa Hanham of the James Martin Center for Nonproliferation Studies released an analysis of a photograph of North Korean supreme leader
Kim Jong Un Kim Jong Un (born 8 January 1983 or 1984) is a North Korean politician and dictator who has served as supreme leader of North Korea since 2011 and general secretary of the Workers' Party of Korea (WPK) since 2012. He is the third son of Kim ...
visiting the Pyongyang Bio-technical Institute, a factory supposedly for the production of
bacillus thuringiensis ''Bacillus thuringiensis'' (or Bt) is a gram-positive bacteria, gram-positive, soil-dwelling bacterium, the most commonly used biological pesticide worldwide. ''B. thuringiensis'' also occurs naturally in the gut of caterpillars of various types ...
of use in pesticides. Hanham's analysis concluded that the factory actually produces weaponized
anthrax Anthrax is an infection caused by the bacterium '' Bacillus anthracis'' or ''Bacillus cereus'' biovar ''anthracis''. Infection typically occurs by contact with the skin, inhalation, or intestinal absorption. Symptom onset occurs between one ...
. Hanham noted that pesticide production factories are "an old and well-used cover for a biological weapons program" and an example of
dual-use technology In politics, diplomacy and export control, dual-use items refer to goods, software and technology that can be used for both civilian and military applications.
. A number of other experts agreed that "the photos most likely show an operational biological weapons facility." The North Korean government denied the allegations; an official spokesperson for the
National Defence Commission The National Defence Commission of the Democratic People's Republic of Korea (NDC) was the highest state institution for military and national defence leadership in North Korea, which also served as the highest governing institution of the countr ...
, through the official
Korean Central News Agency The Korean Central News Agency (KCNA) () is the state news agency of North Korea. The agency portrays the views of the North Korean government for both domestic and foreign consumption. It was established on December 5, 1946, and now features ...
, challenged the
U.S. Congress The United States Congress is the legislative branch of the federal government of the United States. It is a bicameral legislature, including a lower body, the U.S. House of Representatives, and an upper body, the U.S. Senate. They both ...
to inspect the Institute and "behold the awe-inspiring sight of the Pyongyang Bio-technical Institute." North Korea possesses various types of chemical weapons, including nerve, blister, blood, and vomiting agents, as well as some biological weapons, including anthrax, smallpox, and cholera. In 2017,
Kim Jong-nam Kim Jong-nam (, ; 10 May 1971 – 13 February 2017) was the eldest son of North Korean leader Kim Jong Il. From roughly 1994 to 2001, he was considered the heir apparent to his father. He was thought to have fallen out of favor after embarras ...
, the estranged elder half-brother of Kim Jong Un, was assassinated with VX nerve agent at
Kuala Lumpur International Airport Kuala Lumpur International Airport is the main international airport serving Kuala Lumpur, the capital of Malaysia. It is located in the Sepang District of Selangor, approximately south of downtown Kuala Lumpur and serves the Greater Kuala L ...
in
Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...
by suspected North Korean agents. The identified stockpile is between 2,500 and 5,000 metric tons of chemical weapons. It is one of the world's largest possessors of chemical weapons, ranking third after the United States and Russia.

North Korea is deploying 250 new tactical ballistic missile launchers near its border with South Korea, escalating regional tensions. North Korean leader Kim Jong-un emphasized their role in potential confrontation with the US. This move comes ahead of the annual US-South Korea military exercise, which North Korea condemns as invasion rehearsals. North Korea rejected UN criticism of its October 2024 ICBM launch, with Kim Yo Jong asserting the country’s right to self-defense. South Korea responded with sanctions and a joint drone drill with the US, while the UN Security Council planned to address the missile activity amid regional tensions.


Delivery systems


History

In the late 1970s or early 1980s, the DPRK received several longer range
Scud A Scud missile is one of a series of tactical ballistic missiles developed by the Soviet Union during the Cold War. It was exported widely to both Second and Third World countries. The term comes from the NATO reporting name attached to the m ...
-B missiles from Egypt (which in turn received those missiles from the
USSR The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
, Bulgaria and Poland). The USSR had refused to supply Scuds directly to North Korea, but North Korea, starting in the 1970s, has produced missiles based on its design: a local production basis was established, and the first modified copy was named Hwasong-5. With time, more advanced types of missiles were developed. Eventually North Korea equipped itself with
ballistic missile A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typic ...
s, capable of reaching Japan. In the 1990s, North Korea sold medium-sized nuclear capable missiles to Pakistan in a deal facilitated by China. North Korea's ability to deliver weapons of mass destruction to a hypothetical target is somewhat limited by its missile technology. In 2005, North Korea's total range with its Hwasong-7 (Nodong) missiles was estimated as 900 km with a 1,000 kg payload. That is enough to reach South Korea, and parts of Japan, Russia, and China. The Hwasong-10 is a North Korean designed
intermediate-range ballistic missile An intermediate-range ballistic missile (IRBM) is a ballistic missile with a range (aeronautics), range between (), categorized between a medium-range ballistic missile (MRBM) and an intercontinental ballistic missile (ICBM). Classifying ball ...
with range capabilities of up to 2,490 km (1,550 mi), and could carry a nuclear warhead. In an online interview published in 2006, the Japanese Ministry of Defense's analyst Hideshi Takesada argued that North Korea's desire of unification is similar to
North Vietnam North Vietnam, officially the Democratic Republic of Vietnam (DRV; ; VNDCCH), was a country in Southeast Asia from 1945 to 1976, with sovereignty fully recognized in 1954 Geneva Conference, 1954. A member of the communist Eastern Bloc, it o ...
, and warned of the possibility of North Korea's compulsory merger with South Korea by threats of nuclear weapons, taking advantage of any possible decrease in the U.S. military presence in South Korea, after North Korea deploys several hundred mobile ICBMs aimed at the United States. In 2016, Israeli analyst Uzi Rubin said that the missile program had demonstrated "remarkable achievements". Report on North Korea by United Nations Panel of Experts with information's disclosed by various member countries that the status of its ballistic missile program as comprehensive and autonomous with guidance system being indigenous, demonstrated by recent test of a short range ballistic missile similar to Iskander and demonstrating depressed trajectory as such. In January 2020, Vice Chairman of the
Joint Chiefs of Staff The Joint Chiefs of Staff (JCS) is the body of the most senior uniformed leaders within the United States Department of Defense, which advises the president of the United States, the secretary of defense, the Homeland Security Council and ...
John E. Hyten said "North Korea is building new missiles, new capabilities, new weapons as fast as anybody on the planet." On October 19, 2021, North Korea launched a ballistic missile that landed in the
Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it ...
. Japan's prime minister Fumio Kishida called the launch "very regrettable". The French think tank Foundation for Strategic Research released a report analyzing the North Korean nuclear arsenal and ballistic missiles. It estimated the
accuracy Accuracy and precision are two measures of ''observational error''. ''Accuracy'' is how close a given set of measurements (observations or readings) are to their ''true value''. ''Precision'' is how close the measurements are to each other. The ...
of short range ballistic missiles such as Hwasong-11A (KN-23) and Hwasong-11B (KN-24) to be 35 meters based on satellite imagery and the distance between impact craters from missile tests, and 80–90 meters for the KN-25 large diameter guided rocket. The
Congressional Research Service The Congressional Research Service (CRS) is a public policy research institute of the United States Congress. Operating within the Library of Congress, it works primarily and directly for members of Congress and their committees and staff on a ...
issued a report citing a 2017 assessment by the
Defense Intelligence Agency The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense (DoD) specializing in military intelligence. A component of the Department of Defense and the United States In ...
that North Korea has achieved a level of miniatuarization of nuclear warheads needed to mount them on short range and intercontinental ballistic missiles. CRS assessed that the Hwasong-11A (KN-23) SRBM, which can target the entire Korean peninsula, and the Pukguksong-2 (KN-15) MRBM, which can target all of Japan, can carry both conventional and nuclear warheads.


Operational delivery systems

There is evidence that North Korea has been able to miniaturize a nuclear warhead for use on a ballistic missile. According to Japan's defense white paper North Korea does possess the ability to miniaturize nuclear weapons. A defense white paper from South Korea in 2018 said North Korea's ability to miniaturize nuclear weapons has reached a considerable level. In a leaked report the American Defense Intelligence Agency also claims North Korea can miniaturize nuclear warheads for ballistic missiles. Whether North Korea has technology to protect their missiles upon re-entry is unknown. Some analysts suggest North Korea's new missiles are fakes. Various North Korean rocket tests continued into the 2010s, for example in
2013 2013 was the first year since 1987 to contain four unique digits (a span of 26 years). 2013 was designated as: *International Year of Water Cooperation *International Year of Quinoa Events January * January 5 – 2013 Craig, Alask ...
, in
2014 The year 2014 was marked by the surge of the Western African Ebola epidemic, West African Ebola epidemic, which began in 2013, becoming the List of Ebola outbreaks, most widespread outbreak of the Ebola, Ebola virus in human history, resul ...
, and in 2016. North Korea performed no tests of medium-range missiles sufficiently powerful to reach Japan in 2015, but South Korea's
Yonhap Yonhap News Agency (; ) is a major news agency in South Korea. It is based in Seoul, South Korea. Yonhap provides news articles, pictures, and other information to newspapers, TV networks and other media in South Korea. History Yonhap was esta ...
news agency believes that at least one missile fired during North Korea's March 2016 missile tests is likely a medium-range Rodong missile. An August 2016 North Korean missile test of a Rodong missile that flew landed about west of Japan's Oga Peninsula, in international waters but inside Japan's
exclusive economic zone An exclusive economic zone (EEZ), as prescribed by the 1982 United Nations Convention on the Law of the Sea, is an area of the sea in which a sovereign state has exclusive rights regarding the exploration and use of marine natural resource, reso ...
, prompting Japan to condemn the "unforgivable act of violence toward Japan's security". As of 2016, North Korea is known to have approximately 300 Rodong missiles whose maximum range is 1,300 km (800 mi). North Korea appeared to launch a missile test from a submarine on April 23, 2016; while the missile only traveled 30 km, one U.S. analyst noted that "North Korea's sub launch capability has gone from a joke to something very serious". However, as of 2023, there appears to be slow progress developing
submarine-launched ballistic missile A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from Ballistic missile submarine, submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which ...
s (SLBM), possibly as the development was lowered in priority given the good progress with substantially more survivable land-mobile missiles. The U.S. is sanctioning six individuals and five entities in China for supporting North Korea's WMD and ballistic missile programs. This network aided a DPRK representative linked to the Second Academy of Natural Sciences. The U.S. aims to disrupt these networks to counter regional destabilization and Russia's actions in Ukraine.


Operational or successfully tested

* Hwasong-5 – initial Scud modification. Road-mobile, liquid-fueled missile, with an estimated range of 330 km. It has been tested successfully. It is believed that North Korea has deployed some 150–200 such missiles on mobile launchers. * Hwasong-6 – later Scud modification. Similar to the Hwasong-5, yet with an increased range (550–700 km) and a smaller warhead (600–750 kg). Apparently this is the most widely deployed North Korean missile, with at least 400 missiles in use. * Hwasong-7 – Also known as Nodong or Rodong-1, larger and more advanced Scud modification. Liquid-fueled, road-mobile missile with a 650 kg warhead. First production variants had inertial guidance, later variants featured GPS guidance, which improves CEP accuracy to 190–250 m. Range is estimated to be between 1,300 and 1,600 km. * Hwasong-9 – The Hwasong-9, also known as Scud-ER, is further development of Hwasong-6 with range of (1000–1000+ km) and is capable of hitting Japan. * Hwasong-10 – believed to be a modified copy of the Soviet
R-27 Zyb The R-27 () was a submarine-launched ballistic missile developed by the Soviet Union and employed by the Soviet Navy from 1968 through 1988. NATO assigned the missile the NATO reporting name, reporting name SS-N-6 Serb. In the USSR, it was given ...
SLBM A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which carries a nuclear warhead ...
. Originally believed to have been tested as the first or second stage of
Unha The Unha (, "Galaxy") is a North Korean expendable launch system, expendable launch vehicle, carrier rocket, which partially utilizes the same delivery system as the Taepodong-2 orbital launch system. History North Korea's first orbital space ...
, but debris analysis showed that the Unha used older technology than it is believed the Hwasong-10 uses. Also known under the names Nodong-B, Taepodong-X, Musudan and BM25, predicted to have a range of 2,500–4,000 km. A DoD report puts BM25 strength at fewer than 50 launchers. * Hwasong-11 – Also known as KN-02, a short-range, solid-fueled, highly accurate mobile missile, modified copy of the Soviet OTR-21. Unknown number in service, apparently deployed either in the late 1990s or early 2000s (decade). * Hwasong-11A – Also known as KN-23. 700 km range, Successfully tested on May 4, 2019. Similar to
9K720 Iskander The 9K720 Iskander (; NATO reporting name SS-26 Stone) is a Russian mobile short-range ballistic missile system. It has a range of . It was intended to replace the OTR-21 Tochka in the Russian military by 2020. The Iskander has several differ ...
. Demonstrated range of 800 kilometers on September 15, 2021. * Hwasong-12 – a medium-range, liquid-fueled, mobile missile. First tested in May 2017. also known as KN-17 outside of Korea, South Korean experts estimate range of 5000 to 6000 km based on successful test conducted in May. * Hwasong-14 – Also known as the KN-20, a long-range, road transportable
ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
, tested on July 4 and 29, 2017, estimated range is John Schilling estimates the current accuracy of the North's Hwasong-14 as poor at the mooted ranges which threaten US cities (which would require more testingPayload Breakup Video: NHK static camera setup on Hokkaido island
26-second video clip
to prove its accuracy). Michael Elleman has pointed out that the NHK video which captured the descent of the reentry vehicle (RV) shows its failure to survive reentry. If the RV had survived reentry, the video would have shown a bright image all the way to impact in the sea. However a recent CIA assessment notes that North Korea's ICBM reentry vehicles would likely perform adequately if flown on a normal trajectory to continental U.S. targets. * Hwasong-15 – 13,000 km range, successfully tested on November 28, 2017. * Hwasong-17 – potential range over 15,000 km depending on the warhead weight, according to initial Japanese estimate. The ICBM was believed to be first successfully tested on a full flight on November 18, 2022. The ICBM's long-range accuracy, and its ability to survive re-entry, are unknown as of 2022. * Pukguksong-1 – a long-range, solid-fueled, SLBM. Also called the KN-11 by the Defense Department. Possibly derived from the Chinese JL-1 SLBM. * Pukguksong-2 – a long-range, land based development of the solid fueled Pukguksong-1. Also known as KN-15.


Untested

* Hwasong-13 – Road-mobile
ICBM An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...
. Also known as KN-08. Maximum range more than 5,500 km (3,400 miles). The US Defense Department estimates at least 6 Hwasong-13 (KN-08) launchers are in deployment. A modified version, called KN-14 under the U.S. naming convention, was unveiled at a parade marking the 70th anniversary of the
Workers' Party of Korea The Workers' Party of Korea (WPK), also called the Korean Workers' Party (KWP), is the sole ruling party of North Korea. Founded in 1949 from a merger between the Workers' Party of North Korea and the Workers' Party of South Korea, the WPK is ...
. The missile development was halted due to engine problems.


Exports related to ballistic missile technology

In April 2009, the United Nations named the Korea Mining and Development Trading Corporation (KOMID) as North Korea's primary arms dealer and main exporter of equipment related to ballistic missiles and conventional weapons. The UN lists KOMID as being based in the Central District, Pyongyang. However, it also has offices in Beijing and sales offices worldwide which facilitate weapons sales and seek new customers for North Korean weapons. KOMID has sold missile technology to Iran and has done deals for missile related technology with the Taiwanese. KOMID has also been responsible for the sale of equipment, including missile technologies, gunboats, and multiple rocket artilleries, worth a total of over $100 million, to Africa, South America, and the Middle East. North Korea's military has also used a company called Hap Heng to sell weapons overseas. Hap Heng was based in Macau in the 1990s to handle sales of weapons and missile and nuclear technology to nations such as Pakistan and Iran. Pakistan's medium-range ballistic missile, the Ghauri, is considered to be a copy of North Korea's Rodong 1. In 1999, intelligence sources claim that North Korea had sold missile components to Iran. Listed directors of Hap Heng include Kim Song in and Ko Myong Hun. Ko Myong Hun is now a listed diplomat in Beijing and may be involved in the work of KOMID. A UN Security Council sanctions committee report stated that North Korea operates an international smuggling network for nuclear and ballistic missile technology, including to Myanmar (Burma), Syria, and Iran.


Export partners

Several countries have bought North Korean ballistic missiles or have received assistance from North Korea to establish local missile production. ;:Egypt has received technologies and assistance for manufacture of both the Hwasong-5 and Hwasong-6, and may have provided guidance systems or information on longer-range missiles to North Korea from the Condor (Argentine missile), Condor/Badr program. ;:Iran was one of the first countries to buy North Korean missiles. Iran has established local production for the Hwasong-5 (Shahab-1), Hwasong-6 (Shahab-2) and the Rodong-1 (Shahab-3). Iran also possesses 19 land-based BM25 Musudan missiles, according to a Contents of the United States diplomatic cables leak#Iran, leaked, classified U.S. State Department cable, Iran designated the Musudan as Khorramshahr (missile), Khorramshahr. This nuclear-capable missile is currently under development and failed its two known flight tests. ;:North Korean entities continued to provide assistance to Pakistan's ballistic missile program during the first half of 1999 in return for nuclear weapons technology. Such assistance was critical to Islamabad's efforts to produce ballistic missiles. In April 1998, Pakistan flight-tested the Ghauri MRBM, which is based on North Korea's Nodong missile. Also in April 1998, the United States imposed sanctions against Pakistani and North Korean entities for their role in transferring Missile Technology Control Regime Category I ballistic missile-related technology. ;: :Syria originally obtained the R-17 Elbrus, Scud-B from North Korea. North Korea may have assisted Syria in development of the Scud#Scud-C, Scud-C and/or the Scud#Scud-D, Scud-D. As of 2013, Syria relies on foreign assistance from multiple countries, including North Korea, for advanced missile components and technologies. In 2018, a United Nations report alleged that North Korea had been sending technicians and material to Syria to assist in its chemical weapons program, including acid-resistant tiles, valves, and thermometers. ; :25 Hwasong-5s were purchased from North Korea in 1989. The Union Defence Force (UAE), UAE Union Defence Force were not satisfied with the quality of the missiles, and they were kept in storage. ; :Vietnam reportedly ordered Hwasong-5/6 missiles in 1998–99, but it is unclear if this deal was fulfilled. ; :Yemen is known to have bought Scud missiles from North Korea in the 1990s—a total of 15 missiles, conventional warheads and fuel oxidizer.


Former export partners

;: :Libya during the rule of Muammar Gaddafi had been known to receive technological assistance, blueprints and missile parts from North Korea.


Rejection by a potential export partner

;:In January 2004, the Nigerian government announced that North Korea had agreed to sell its missile technology, but a month later Nigeria rejected the agreement under U.S. pressure.


International responses

In the 1990s, the United States negotiated the Agreed Framework to freeze North Korea's nuclear weapons program while pursuing the denuclearization of the Korean peninsula. This broke down when North Korea's clandestine uranium enrichment program came to light in 2002, after which China convened the
six-party talks The six-party talks aimed to find a peaceful resolution to the security concerns as a result of the North Korean nuclear weapons program. There was a series of meetings with six participating states in Beijing: * China * Japan * North Korea ...
to negotiate a step-by-step process to denuclearization. The six-party talks stalled after multiple North Korean nuclear and missile tests, leading to increased international Sanctions against North Korea, including a series of List of United Nations Security Council resolutions concerning North Korea, sanctions resolutions imposed by the United Nations Security Council. In 2018, Presidents Moon Jae-in of South Korea and Donald Trump of the United States held a series of summits with Kim Jong Un which led to declarations in favor of the denuclearization of the Korean peninsula.


International inspections

On October 31, 2018, lawmaker Kim Min-ki of South Korea's ruling Democratic Party (South Korea, 2015), Democratic Party of Korea issued a statement revealing that officials from South Korea's National Intelligence Service had observed several of North Korea's nuclear and missile test sites and that they were now ready for the upcoming international inspections. Kim also stated that the now inactive North Korean
Punggye-ri Nuclear Test Site Punggye-ri Nuclear Test Site () was the only known nuclear test site of North Korea. Nuclear tests were conducted at the site in October 2006, May 2009, February 2013, January 2016, September 2016, and September 2017. Geography The s ...
and the Sohae Satellite launching ground were included in these observations. The visit by the intelligence officials was in tandem with the September 2018 Pyongyang Agreement, which saw North Korean leader Kim Jung-Un agree to close Sohae and allow international experts to observe the dismantling of the missile engine testing site and a launch pad. The international experts will also be allowed to witness the dismantling of other North Korean nuclear and missile test sites as well. Yongbyon, the main nuclear facility in North Korea, has also been inactive during the past year as well, but has not yet completely closed.


See also

* Korean conflict * Korean reunification * 2017–18 North Korea crisis * 2002 State of the Union Address * Foreign relations of North Korea * List of nuclear weapons tests of North Korea * North Korea–Pakistan relations * North Korea–United States relations * Nuclear power in North Korea * Sohae Satellite Launching Station * *South Korea and weapons of mass destruction


Notes


References


External links


Federation of American Scientists guide to North Korean chemical weapons
* Jonathan D. Pollack
"North Korea's Nuclear Weapon Development: Implications for Future Policy"
''Proliferation Papers'', Paris, IFRI, Spring 2010

– Key facts (based on South Korean defense ministry data); AFP, June 1, 2005
North Korea: Problems, Perceptions and Proposals
– Oxford Research Group, April 2004


Nuclear Files.org
Information on the North Korean nuclear program including links to source documents
Annotated bibliography for the North Korean nuclear weapons program from the Alsos Digital Library

The February 13 Action Plan and the Prospects for the North Korean Nuclear Issue
nbsp;– analysis by Narushige Michishita, IFRI Proliferation Papers n° 17, 2007
North Korean International Documentation Project
Contains primary source documents related to the DPRK's efforts to obtain nuclear technology dating back to the mid-1960s
TIME Archives
A Collection of stories regarding North Korea's Nuclear Program * Chung Min Lee
"The Evolution of the North Korean Nuclear Crisis: Implications for Iran"
''Proliferation Papers'', Paris, IFRI, Winter 2009 * Norris, Robert S. and Kristensen, Hans M.
"North Korea's nuclear program, 2005"
''
Bulletin of the Atomic Scientists The ''Bulletin of the Atomic Scientists'' is a nonprofit organization concerning science and global security issues resulting from accelerating technological advances that have negative consequences for humanity. The ''Bulletin'' publishes conte ...
'', May/June 2005
Normalizing Japan: Supporter, Nuisance, or Wielder of Power in the North Korean Nuclear Talks
– An analysis of Japan's role in the Six-Party Talks by Linus Hagström.
North Korea: Economic Sanctions

Chronology of U.S. – North Korean Nuclear and Missile Diplomacy

North Korea's Nuclear Weapons Development and Diplomacy
Congressional Research Service.
IISS North Korea's Ballistic Missile Programme

List of all sanctions against North Korea


– Reuters (Updated September 3, 2017) {{North Korean armed forces Nuclear program of North Korea, Military history of North Korea Anti-North Korean sentiment in South Korea Juche Foreign relations of North Korea Weapons of mass destruction by country