Global nuclear risks are shifting.

U.S.–Iran talks under military pressure.
Arms control limits have expired.
North Korea reinforces its nuclear doctrine.
Our latest Nuclear Risk & Stability Briefing examines what this means for 2026.
https://defconwarningsystem.com/2026/02/23/global-nuclear-risk-us-iran-north-korea-arms-control-2026/

Russia’s Foreign Intelligence Service claims the UK and France are preparing to help Ukraine acquire a nuclear weapon.

If true, this would mark a major escalation in the war and global nuclear risk.

https://community.defconwarningsystem.com/threads/ua%F0%9F%87%BA%F0%9F%87%A6-ru%F0%9F%87%B7%F0%9F%87%BA-nato%F0%9F%87%AA%F0%9F%87%BA-reports.25752/post-306472

United States says Iran is attempting to rebuild its nuclear weapons programme. - https://community.defconwarningsystem.com/threads/%F0%9F%94%B5defcon-4-us-iran-israel-tension-escalating-rapidly-reports.25916/post-306692

United States announces operation against Iran. - https://community.defconwarningsystem.com/threads/%F0%9F%94%B5defcon-4-us-iran-israel-alert%E2%9A%A0%EF%B8%8Fconflict-widening-rapidly-reports.26039/post-307136

Israel citizens are urged to take precautions against Iranian unconventional weapons including nuclear such as dirty bombs. There is currently no evidence of such use being planned, but it is not outside the realm of possibility given Iran's nuclear programme.

We remain at DEFCON 4 for the moment. We continue to monitor the Iran crisis. Citizens of Israel are reminded to take precautions in the event of a nuclear event.

We are currently assessing developments coming out of Iran. We post important information, not minute detail, and only when we are certain of its validity.

For breaking info, data and reporting can be found at https://community.defconwarningsystem.com

Many reporting Israel source that Iran Supreme leader Ali Khamenei has been killed. - https://community.defconwarningsystem.com/threads/%F0%9F%94%B5defcon-4-us-iran-israel-war-day-2-reports.26048/post-307594

Follow Iran developments from multiple sources in our threads.
Reports: https://community.defconwarningsystem.com/threads/%F0%9F%94%B5defcon-4-middle-eastern-regional-war-day-3-reports.26051/
Discussions: https://community.defconwarningsystem.com/threads/defcon-4-middle-eastern-regional-war-day-3-4-discussions.26052/

🚨 War With Iran | Nuclear Escalation Update 🚨
The U.S. and Israel have launched strikes on Iran, provoking missile retaliation and rising nuclear risk. DEFCON Warning System breaks down the implications.

📊 Full analysis:
https://defconwarningsystem.com/2026/03/02/war-with-iran-nuclear-escalation-defcon-4-march-2026/

#MiddleEast

No radioactive leaks have been recorded at the Natanz nuclear facility following the US & Israeli strikes. - https://community.defconwarningsystem.com/threads/%F0%9F%94%B5defcon-4-middle-eastern-regional-war-day-5-reports.26072/post-309062

International Atomic Energy Agency ( IAEA) said no further damage has been detected at the Natanz nuclear site. No other damage has been discovered at Iran’s other nuclear sites including Bushehr, the UN agency said. - https://community.defconwarningsystem.com/threads/%F0%9F%94%B5defcon-4-middle-eastern-regional-war-day-6-reports.26089/post-309399

Iran says it will target Israel nuclear site Dimona if The United States and Israel seek regime change.