Urgently convene a summit to address the potential resumption of nuclear testing and reinforce commitments to non-proliferation treaties.
Nuclear War
Nuclear War Risk
Assessment for this date
Recent developments in nuclear weapons modernization, potential resumption of nuclear testing, and geopolitical tensions have significantly heightened the global nuclear threat level.
December 6, 2025
Trend
Viewing the record for December 6, 2025 within the full trend.
Risk Drivers
What is pushing the current reading.
The current nuclear threat level is elevated due to several concerning trends: the modernization of nuclear arsenals, as evidenced by the completion of the B61-13 and ongoing sustainment of the B61-12, suggests an arms race dynamic. Additionally, the potential resumption of nuclear testing by the U.S., as indicated by recent statements, undermines decades of nuclear non-proliferation efforts and could provoke similar actions by other nuclear states, increasing the risk of miscalculation or escalation. Furthermore, geopolitical tensions, particularly involving major powers like the U.S., Russia, and China, exacerbate the situation, as does the erosion of arms control treaties and reduced communication channels, which historically have helped manage crises.
Risk Reduction Actions
Priority actions generated from the current analysis.
Increase diplomatic efforts to renew and expand arms control agreements, focusing on transparency and verification mechanisms.
Enhance crisis communication channels with other nuclear-armed states to prevent misunderstandings and accidental escalations.
Raise public awareness about the risks of nuclear weapons modernization and testing to build pressure for policy change.
Advocate for nuclear disarmament and support organizations working towards reducing nuclear risks.
Sources Monitored
Visible feeds used in this category's nightly run.
Selected Articles
Supporting articles referenced in the latest score.
- B61-13 first production unit completed ahead of schedule
- B61-12 system production ends, sustainment begins
- Trump says nuclear weapons testing to resume in US after more than 30 years Publisher: BBC
- Trump suggests the U.S. will resume testing nuclear weapons Publisher: NPR
- Trump tells Pentagon to resume testing US nuclear weapons Publisher: Reuters