Nuclear Weapons by Country 2026

On August 6, 1945, a single bomb dropped from a single aircraft killed roughly 70,000 people instantly and effectively ended one war while beginning another. In the eighty years since Hiroshima, exactly nine countries have built nuclear weapons, and not one of them has used a nuclear weapon in anger. The size, structure, and doctrine of those nine arsenals shape almost every great-power calculation in the world. This article walks through each of the nine nuclear states as of 2026, the systems they use to deliver their warheads, and the doctrines that govern when, in theory, those weapons might be used. It also looks at the trends, the treaties, and the actors who could become the tenth member of the club.

The total global stockpile in 2026 is approximately 12,500 warheads. That sounds enormous, and it is, but it is also dramatically lower than the Cold War peak of around 70,000 in 1986. Almost all of that reduction came from bilateral U.S.-Russian arms control. Whether that downward trend continues, stalls, or reverses is one of the central security questions of the next decade.

The Nine Nuclear States

1. Russia — 5,977 warheads

Russia inherited the bulk of the Soviet nuclear arsenal in 1991 and remains the world's largest nuclear power, with approximately 5,977 warheads. Of these, roughly 1,710 are deployed on intercontinental ballistic missiles, submarine-launched ballistic missiles, and at strategic bomber bases; the remainder are in reserve or awaiting dismantlement under the New START framework (the future of which is itself in question after Russia's 2023 suspension). Russia maintains the most diverse nuclear triad in the world. The land leg includes silo-based RS-24 Yars and the new RS-28 Sarmat heavy ICBM, plus road-mobile launchers that are extremely difficult to target. The sea leg rests on Borei-class ballistic missile submarines carrying Bulava SLBMs. The air leg uses Tu-95MS Bear and Tu-160 Blackjack bombers carrying Kh-102 cruise missiles. Russian doctrine has, since 2010, formally permitted the first use of nuclear weapons in response to a conventional attack that "threatens the existence of the state," and Vladimir Putin has repeatedly invoked nuclear threats during the Ukraine war, raising the prominence of the so-called "escalate to de-escalate" concept that Western analysts have debated for years. Russia is also the only country known to have actively tested ground-launched intermediate-range cruise missiles in violation of the (now-defunct) INF Treaty.

2. United States — 5,428 warheads

The United States holds approximately 5,428 nuclear warheads, of which around 1,670 are deployed and the rest in reserve. The American arsenal is built on a modernized triad. The land leg consists of 400 Minuteman III silo-based ICBMs, scheduled for replacement by the LGM-35A Sentinel beginning in the late 2020s. The sea leg, generally regarded as the most survivable element, consists of 14 Ohio-class submarines carrying Trident II D5 SLBMs, with the new Columbia-class boats entering service to replace them. The air leg uses B-2 Spirit and the new B-21 Raider stealth bombers, plus the venerable B-52H equipped with AGM-181 Long Range Stand Off cruise missiles. Unlike Russia, the United States maintains a declared posture in which the role of nuclear weapons is to deter nuclear attack on itself, its allies, and its forces, with the option of first use deliberately preserved as a hedge. The United States also extends nuclear deterrence to NATO members through the European nuclear sharing arrangement, in which a small number of B61 gravity bombs are stored at allied airbases in Belgium, Germany, Italy, the Netherlands, and Turkey for delivery by allied aircraft in wartime.

3. China — 410 warheads

China maintains approximately 410 nuclear warheads, a number that has doubled since the early 2010s and is projected by U.S. intelligence to reach perhaps 1,500 by 2035. The Chinese arsenal is undergoing the most rapid modernization of any nuclear force in the world. New silo fields have been observed under construction in Yumen, Hami, and Hanggin Banner, suggesting hundreds of new ICBM silos will be activated in the late 2020s. The sea leg rests on six Type 094 ballistic missile submarines carrying JL-2 and JL-3 SLBMs, with the larger Type 096 expected this decade. The land leg includes the DF-41, DF-31AG, and DF-5 ICBMs. China has historically maintained a no-first-use policy, the only declared nuclear power to do so, though Western analysts increasingly question whether that doctrine will survive the buildup. China was excluded from U.S.-Russian arms control in the twentieth century because its arsenal was so small. By the time New START expires, China will be a peer-level nuclear power and bilateral talks will likely have to become trilateral or fall apart. See United States vs China for the broader military comparison.

4. France — 290 warheads

France maintains approximately 290 nuclear warheads, all of them operationally deployed (France does not maintain a separate non-deployed reserve). The French force de frappe consists of two legs: a sea leg of four Triomphant-class ballistic missile submarines carrying M51 SLBMs, and an air leg of Rafale fighters armed with the ASMPA medium-range air-to-surface missile. France abandoned its land-based ICBMs in 1996 and has not built new ones since. French doctrine emphasizes "strict sufficiency", maintaining the smallest force consistent with credible deterrence, and reserves the right to employ nuclear weapons in response to any threat to French "vital interests," a deliberately ambiguous term that is decided solely by the President of the Republic. France is unique among NATO members in keeping its nuclear command entirely outside the alliance's integrated military structure, a legacy of Charles de Gaulle's insistence on strategic autonomy.

5. United Kingdom — 225 warheads

The United Kingdom maintains approximately 225 nuclear warheads, a stockpile cap that the British government voted in 2021 to raise from a previous limit of around 180. All British warheads are carried by Trident II D5 SLBMs aboard four Vanguard-class submarines, with one boat continuously on patrol since 1969 in an unbroken cycle known as Continuous At Sea Deterrence. The Vanguard fleet will be replaced by the new Dreadnought-class submarines from the early 2030s. Unlike France, the United Kingdom has no air-delivered or land-based nuclear weapons, making it the only nuclear power with a single-leg arsenal. The British warhead is independent in its targeting but the missile itself is leased from a shared U.S.-UK pool, an arrangement that gives Britain genuine deterrence at modest cost but ties it tightly to American strategic priorities. The U.K. assigns its nuclear forces to the defense of NATO, but reserves the right to employ them unilaterally if British supreme national interests require it.

6. Pakistan — 170 warheads

Pakistan maintains approximately 170 nuclear warheads, making it one of the fastest-growing nuclear powers in the world (its arsenal has roughly doubled since 2010). Pakistan first tested nuclear weapons in 1998, in direct response to Indian tests two weeks earlier. The Pakistani arsenal is built around land-based delivery systems, including the Shaheen and Ghauri series of ballistic missiles and the air-delivered Ra'ad cruise missile carried by Mirage III/V and JF-17 aircraft. Pakistan has also developed the Nasr (Hatf-IX) short-range battlefield nuclear missile, which has been widely interpreted as a tactical weapon designed to halt an Indian conventional offensive. This "full spectrum deterrence" doctrine, in which Pakistan is willing to use small nuclear weapons against advancing Indian armor, is one of the most aggressive declared nuclear postures of any state and has caused considerable concern among analysts. Pakistan has not signed the Non-Proliferation Treaty and is not subject to international inspection.

7. India — 164 warheads

India maintains approximately 164 nuclear warheads. India first tested a nuclear device in 1974 (the so-called "Smiling Buddha" test, described publicly as a "peaceful nuclear explosion") and conducted its first formal weapons tests in 1998, just before Pakistan's. The Indian arsenal is steadily becoming a true triad. The land leg consists of the Agni series of ballistic missiles, with Agni-V (range over 5,000 km) able to reach all of China and the longer Agni-VI in development. The sea leg consists of the Arihant-class ballistic missile submarines, with the second hull, INS Arighat, commissioned in 2024. The air leg uses Mirage 2000 and Rafale aircraft. Indian doctrine is built around no-first-use, massive retaliation if attacked, and credible minimum deterrence. India, like Pakistan and Israel, has not signed the Non-Proliferation Treaty. The two-front problem (China to the north, Pakistan to the west) shapes nearly every Indian strategic decision. See India vs China for a head-to-head breakdown.

8. Israel — approximately 90 warheads

Israel is widely believed to possess approximately 90 nuclear warheads, though Israel has never officially confirmed or denied that it has nuclear weapons, a posture known as "nuclear opacity" or amimut. The Israeli arsenal is generally assessed to be deliverable by F-15I and F-16I aircraft, by Jericho II and Jericho III medium- and intermediate-range ballistic missiles, and possibly by submarine-launched cruise missiles aboard Israel's Dolphin-class submarines. If true, this would make Israel one of only a handful of countries with a nuclear triad, though a comparatively small one. Israel is not a signatory to the Non-Proliferation Treaty and has consistently rejected calls to join. The strategic logic of Israeli ambiguity is that confirmed nuclear weapons would invite either preemptive attack or a regional arms race, while denial would invite skepticism. Opacity, in theory, deters without forcing acknowledgement.

9. North Korea — approximately 30 warheads

North Korea is estimated to possess approximately 30 nuclear warheads, with enough fissile material to produce dozens more. Pyongyang first tested a nuclear device in 2006 and has conducted six tests in total, including a thermonuclear test in 2017 that was an order of magnitude more powerful than the others. The North Korean arsenal is delivered by an expanding family of ballistic missiles, including the Hwasong-15 and Hwasong-17 ICBMs, both of which appear capable of reaching the continental United States, and the newer Hwasong-18 solid-fuel ICBM. Recent years have seen the testing of submarine-launched ballistic missiles and what appears to be a tactical nuclear capability, with Kim Jong Un publicly declaring an intent to use nuclear weapons "preemptively" in any conflict that threatens regime survival. North Korea spends an extraordinary 24 percent of its tiny GDP on its military, and the nuclear program is the single most expensive and politically central element of that spending. It is the only country in the world to have signed the Non-Proliferation Treaty and then withdrawn from it.

Non-Proliferation Treaty and the Stockpile Trend

The Non-Proliferation Treaty (NPT) entered into force in 1970 and has been the cornerstone of the global nuclear order ever since. The treaty divides countries into nuclear-weapon states (the five permanent members of the UN Security Council, who had tested before 1967) and non-nuclear-weapon states. The non-nuclear states agreed not to acquire weapons; the nuclear states agreed to pursue good-faith disarmament and to share peaceful nuclear technology. Today 191 states are party to the NPT, the highest membership of any arms-control agreement in history. The exceptions are India, Pakistan, and Israel (which never joined) and North Korea (which withdrew in 2003).

The global stockpile peaked at around 70,000 warheads in 1986 and has fallen to roughly 12,500 today, almost entirely because the United States and Russia drew down their arsenals through Strategic Arms Reduction Treaty (START) agreements. The most recent of these, New START, capped each side at 1,550 deployed strategic warheads and 700 deployed delivery vehicles. New START is scheduled to expire in February 2026, and as of this writing there is no successor agreement. Russia suspended its participation in 2023 (without formally withdrawing), and U.S.-Russian arms control is in its weakest state in fifty years.

The downward trend, in other words, is reversing. Five of the nine nuclear states are growing their arsenals (China, Russia, India, Pakistan, North Korea), one is holding steady (the United Kingdom raised its cap but has not built more weapons), and only the United States and France are stable. The next decade will likely be the first since the early 1980s in which the global stockpile increases.

Emerging Concerns

The most prominent country that does not currently have nuclear weapons but could is Iran. Iran has enriched uranium to 60 percent, just below weapons grade, and has accumulated enough material that, if further enriched, would be sufficient for several weapons. Whether Iran has crossed the political decision threshold to actually build a bomb is contested. The 2015 Joint Comprehensive Plan of Action constrained the program in exchange for sanctions relief. The U.S. withdrawal from that agreement in 2018 and Iran's subsequent expansion of enrichment have left Iran perhaps weeks away from a weapon if it chose to make one, though delivery system development would take longer. The 2024 and 2025 Israeli strikes on Iranian nuclear infrastructure further complicated the picture.

Other countries that have, in the past, considered or pursued nuclear weapons include South Korea, Japan, Saudi Arabia, Taiwan, Brazil, Argentina, and (notably) South Africa, which is the only country in history to have built nuclear weapons and then voluntarily dismantled them, in 1989-1991 just before the end of apartheid. South Korea has the technical capability to build a weapon within a year if its government chose. Japan, with its enormous civilian nuclear infrastructure, could probably do the same in less time. Saudi Arabia has stated repeatedly that if Iran builds a weapon, Riyadh will follow. The threshold of restraint is held by political choice as much as by technical limits.

Nuclear-Capable Alliances

Three of the world's nuclear powers (the United States, the United Kingdom, and France) are members of NATO. NATO does not own nuclear weapons as an organization, but it has a unique nuclear sharing arrangement in which a small number of U.S. B61 gravity bombs are stored in vaults at allied bases in Belgium, Germany, Italy, the Netherlands, and Turkey, to be delivered by allied dual-capable aircraft (DCA) in wartime under U.S. release authority. This arrangement, dating from the Cold War, makes those five countries the only non-nuclear states in the world that have nuclear weapons physically present on their soil under their own control plans. The arrangement is controversial, with some arms-control advocates arguing it violates the spirit of the NPT, and is being modernized as the F-35A replaces older DCA aircraft.

Outside NATO, U.S. extended deterrence covers Japan, South Korea, and (less formally) Australia. The credibility of this "nuclear umbrella" is the central reason none of those countries has built its own bomb. Russia extends similar guarantees, in theory, to members of the Collective Security Treaty Organization, though the practical credibility of that promise is much less established. China has no formal nuclear alliance but has stated that its weapons exist to deter attacks on China itself and on Chinese forces overseas, a posture that does not extend explicit guarantees to others.

Conclusion

Eighty years after Hiroshima, the nuclear order remains the most consequential and the most fragile element of international security. Nine countries possess approximately 12,500 warheads. Two of them (the United States and Russia) hold around 90 percent of those warheads. China is climbing toward great-power parity, India and Pakistan are quietly expanding, North Korea is aggressively expanding, and the framework that controlled all of this for fifty years (the START treaties, the INF Treaty, the Open Skies Treaty) is mostly already broken or about to expire. New nuclear powers are not yet emerging, but the conditions that would push them toward acquisition are becoming more favorable, not less.

The strange and uncomfortable truth is that nuclear weapons have probably prevented great-power war since 1945. They have also raised the stakes of any miscalculation to civilizational levels. Managing that paradox, deterring nuclear use without making nuclear use more likely, is the central security task of the twenty-first century, and it is one the world is currently doing badly. For deeper context on the conventional capabilities that surround these arsenals, explore our country comparison tool, where you can put any two of the nine nuclear states side by side and see what their full military picture looks like.