New START reached the end of its term in February 2026 with no successor, leaving US and Russian strategic forces unconstrained by treaty for the first time since 1972.
Live monitoring dashboard
Public news and official-statement coverage, refreshed every 5 minutes
War Risk Tracker
Composite tension index · recalculated …
62
ElevatedRussia – NATO (Ukraine)
Eastern Europe
Attritional war with repeated incidents near and inside NATO airspace.
Taiwan Strait
East Asia
Sustained air and naval pressure; blockade scenarios rehearsed.
Korean Peninsula
East Asia
Missile testing cadence and suspended inter-Korean communications.
Middle East (Iran–Israel)
West Asia
Direct state-on-state exchanges replacing proxy-only conflict.
India – Pakistan
South Asia
Two nuclear states with a live territorial dispute.
South China Sea
Southeast Asia
Coast guard collisions around contested reefs.
Horn of Africa / Red Sea
Africa
Shipping attacks pulling in outside navies.
The index is an editorial composite of open-source tension indicators, not an official forecast. Arsenal and treaty figures below are sourced.
Nuclear Arsenals
Nine states hold roughly 12,187 warheads. About 9,745 are in military stockpiles, 4,012 are deployed with operational forces and some 2,100 are kept on high alert.
Source: January 2026 estimates from the Federation of American Scientists and SIPRI Yearbook 2026. No state publishes verified totals; all figures are best available estimates.
| State | Deployed | Stockpile | Total inventory | Trend |
|---|---|---|---|---|
| Russia | 1796 | 4,400 | 5,420 | stable |
| United States | 1770 | 3,700 | 5,042 | decreasing |
| China | 34 | 620 | 620 | increasing |
| France | 280 | 290 | 370 | stable |
| United Kingdom | 120 | 225 | 225 | increasing |
| India | — | 190 | 190 | increasing |
| Pakistan | — | 170 | 170 | increasing |
| Israel | — | 90 | 90 | stable |
| North Korea | — | 60 | 60 | increasing |
| Total | ~4,012 | ~9,745 | ~12,187 | Stockpiles rising |
Why a Global War Remains Unlikely
While the possibility of a third world war is a constant topic of geopolitical analysis, most experts consider a full-scale global conflict unlikely in the near term. The primary deterrent remains Mutually Assured Destruction: the costs of war far outweigh any conceivable gain.
Economic interdependence adds a second brake. The largest rivals are also each other's trading partners and creditors, and a general war would destroy the wealth both sides are competing over. Alliance structures, for all their friction, also make escalation legible: leaders can see in advance who would be dragged in.
The risk is nonetheless not zero. Intensifying great-power rivalry, arsenal modernisation, the lapse of New START, and shrinking decision windows created by hypersonic and AI-assisted systems all raise the chance of an accident or miscalculation escalating faster than diplomacy can react.
Watch: Deterrence and Escalation Explained
How nuclear deterrence works
Nuclear weapons and modern strategy
Recent Geopolitical Developments
Sustained fighting in Ukraine with long-range strikes, drone incursions into NATO airspace and sharply expanded European defence budgets.
Record-scale Chinese activity around Taiwan alongside the fastest warhead expansion of any arsenal, with new silo fields and a growing sea leg.
Direct Iran–Israel exchanges have normalised state-on-state strikes in a region already carrying nuclear latency risk.
Deepening Russia–North Korea and Russia–Iran military cooperation is linking previously separate theatres.
France stopped publishing arsenal figures in 2026, following earlier UK and US–Russia data blackouts — open-source estimates now carry wider error bars.
Nuclear Doctrine Comparison
Russia
First use possible
2024 doctrine lowers the declared threshold: aggression by a non-nuclear state backed by a nuclear power can trigger a nuclear response.
United States
Ambiguous / undeclared
Extended deterrence over NATO and Indo-Pacific allies; deliberate ambiguity, with roughly 100 B61 bombs forward-deployed in Europe.
China
Declared no-first-use
Declared no-first-use with a lean, survivable force — but the fastest expansion of any arsenal, with new silo fields and a growing sea leg.
France
First use possible
Independent 'vital interests' deterrent with a single warning strike concept; from 2026 Paris no longer publishes arsenal figures.
United Kingdom
Ambiguous / undeclared
Continuous at-sea deterrent on Vanguard submarines; stockpile ceiling raised to 260 and operational figures no longer disclosed.
India
Declared no-first-use
Credible minimum deterrence and no-first-use, qualified by a threatened nuclear response to major chemical or biological attack.
Pakistan
First use possible
Full-spectrum deterrence including battlefield weapons, explicitly aimed at offsetting India's conventional advantage.
Israel
Ambiguous / undeclared
Policy of opacity: neither confirms nor denies possession; assumed last-resort existential deterrent.
North Korea
First use possible
2022 law codifies automatic and pre-emptive use if the leadership or command-and-control is threatened.
Arms-Control Treaty Timeline
- 1963
Partial Test Ban Treaty
In forceBans nuclear tests in the atmosphere, under water and in outer space.
Source - 1968
Non-Proliferation Treaty (NPT)
In force191 states parties. Core bargain of non-proliferation, disarmament and peaceful nuclear use; review conferences remain deadlocked.
Source - 1972
ABM Treaty
WithdrawnLimited strategic missile defences; the United States withdrew in 2002.
Source - 1987
INF Treaty
WithdrawnEliminated all ground-launched missiles of 500–5,500 km. Collapsed in 2019; both sides have since fielded or announced systems in that band.
Source - 1991
START I
ExpiredCut deployed strategic warheads to 6,000 each; lapsed in December 2009.
Source - 1996
Comprehensive Nuclear-Test-Ban Treaty
Signed, not in force187 signatures but still awaiting ratification by eight Annex 2 states. Russia revoked its ratification in 2023.
Source - 2002
Open Skies Treaty
WithdrawnMutual unarmed observation flights; the US exited in 2020 and Russia in 2021.
Source - 2010
New START
ExpiredCapped each side at 1,550 deployed strategic warheads and 700 delivery vehicles. Russia suspended participation and inspections in 2023; the treaty reached the end of its extended term in February 2026 with no successor agreed — the first time since 1972 that no binding limit constrains US and Russian strategic forces.
Source - 2021
Treaty on the Prohibition of Nuclear Weapons (TPNW)
In forceBans possession and use outright, but binds only its non-nuclear-armed states parties; no nuclear-armed state has joined.
Source
Early-Warning Signals to Watch
- Formal withdrawal from the NPT by a threshold state.
- Direct, attributed strikes between NATO and Russian forces.
- A naval blockade or quarantine of Taiwan.
- Large-scale mobilisation orders across multiple European states.
- A resumption of explosive nuclear testing by any of the P5.
- A sudden breakdown in leader-level hotlines during a local crisis.
In conclusion
The fear is fuelled by real and intensifying competition, but the structural barriers to a world war — mutual destruction, economic entanglement and alliance transparency — remain very strong. The nearer-term danger is not a deliberate global war but a regional crisis escalating faster than the surviving arms-control machinery can absorb.