As geopolitical tensions and conflicts escalate worldwide, concern over nuclear weapons has intensified in recent years.
With rivalries sharpening between countries that already possess nuclear capabilities, anxiety about miscalculation and escalation has grown. Flashpoints such as the Russia-Ukraine war, rising friction involving the United States, Israel, and Iran, and the ongoing Israel-Hamas conflict highlight how quickly regional crises can widen.
In this environment, knowing which states have nuclear arms—and how those arsenals are distributed—has become an important piece of understanding today’s security landscape.
Here is a snapshot of the countries believed to currently possess nuclear weapons, illustrating where this highly destructive capability is concentrated.
Nuclear weapons are currently held by: Russia, United States, China, France, United Kingdom, Pakistan, India, Israel, and North Korea.
Taken together, these nine states are estimated to hold around 12,300 nuclear warheads as of 2026. However, most nuclear-armed governments release little to no detailed data about the scale or structure of their stockpiles.
Because official figures are rarely disclosed, the true totals remain unknown, and estimates come with ‘significant uncertainty’, according to the Federation of American Scientists (FAS).
Russia is assessed to have the largest nuclear arsenal globally and continues to invest in further development. Estimates place its inventory at roughly 5,459 to 5,580 warheads, including about 1,150 considered retired and around 4,309 counted as active.
The United States is believed to have an active arsenal of about 3,700 warheads, with a further 1,477 retired—bringing its overall total to approximately 5,177.
As of 2026, the US and Russia together account for an estimated 87% of the world’s total nuclear weapons inventory.
China is thought to have about 600 warheads, ranking it as the third-largest nuclear power. These estimates typically include both missiles and warheads held in reserve storage as well as those assigned to the military stockpile.
China is also expanding and upgrading its forces at pace, and some projections indicate its arsenal could surpass 1,000 warheads by 2030.
France is estimated to field roughly 290–300 nuclear warheads as part of its military nuclear stockpile.
The United Kingdom is assessed to have a total stockpile of around 225 warheads. Approximately 120 are believed to be operationally deployed aboard Trident submarine-launched missiles for immediate availability, while about 105 are retained in reserve and could be brought into service if needed.
The UK’s nuclear deterrent is effectively entirely sea-based.
India, Pakistan, and Israel have not signed the Nuclear Non-Proliferation Treaty (NPT), which is designed to limit the spread of nuclear weapons, encourage peaceful nuclear cooperation, and support progress toward disarmament.
North Korea joined the NPT in the past as a non-nuclear-weapon state but later left the agreement in 2003, pointing to security concerns.
Recent estimates suggest India has roughly 180 nuclear warheads, Pakistan about 170, and North Korea approximately 40–50. These totals generally include both deployed and reserve weapons, though exact numbers are difficult to confirm given the secrecy surrounding these programs. Israel is widely believed to have around 90 warheads, but it continues to follow a policy of deliberate ambiguity.