The DEFCON Warning System
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Ongoing Geointel and Analysis in the theater of nuclear war. Established 1984
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Channel Posts
Current DEFCON level remains 5 – Green. Iran nuclear tensions rise as lawmakers push NPT withdrawal, Hormuz traffic stays restricted, and Pakistan strengthens its Saudi defence pledge. Next update: Sept 28.
https://defconwarningsystem.com/current-defcon-level/
| 2 | Current DEFCON level remains 5 – Green. Iran nuclear tensions sharpen as 130 lawmakers call for the legal process to leave the NPT, while Strait of Hormuz traffic remains near a standstill. Full assessment:
https://defconwarningsystem.com/current-defcon-level/ | 298 |
| 3 | Current DEFCON level remains 5 – Green. Iran nuclear tensions are rising as lawmakers push to withdraw from the NPT, while Strait of Hormuz talks have stalled and NATO faces fresh Russian air and sea incidents.
https://defconwarningsystem.com/current-defcon-level/ | 360 |
| 4 | 130 Iranian lawmakers call for withdrawal from Nuclear Non-Proliferation Agreement.
https://community.defconwarningsystem.com/threads/130-iranian-lawmakers-call-for-withdrawal-from-nuclear-non-proliferation-agreement.26875/ | 376 |
| 5 | Current DEFCON level remains 5 – Green. Iran nuclear tensions are rising as lawmakers push to withdraw from the NPT, while Strait of Hormuz talks have stalled and NATO faces fresh Russian air and sea incidents.
https://defconwarningsystem.com/current-defcon-level/ | 378 |
| 6 |  NEW DEFCON UPDATE: Iran is hardening its nuclear position as work accelerates at Pickaxe Mountain. North Korea is expanding nuclear-material production and giving its navy a nuclear role. The concern is not imminent use, but weakening safeguards.
https://defconwarningsystem.com/2026/09/14/iran-north-korea-nuclear-risks-september-2026/ | 420 |
| 7 | Current DEFCON level remains 5 – Green. Iran's IRGC is making non-interference in the Iran nuclear programme a condition for ending the U.S.-Iran war, as Tehran warns IAEA pressure could push states out of the NPT.
https://defconwarningsystem.com/current-defcon-level/ | 427 |
| 8 | Current DEFCON level remains 5 – Green. Iran's IRGC is making non-interference in the Iran nuclear programme a condition for ending the U.S.-Iran war, as Tehran warns IAEA pressure could push states out of the NPT.
https://defconwarningsystem.com/current-defcon-level/ | 501 |
| 9 | We have released version 6.0 of The DEFCON Warning System Windows Desktop App. It displays the current DEFCON level on taskbar, sound an alert if it is raised, and display any new post we make to our BlueSky account.
Download the app from here: https://defconwarningsystem.com/links-tools/#Applications | 495 |
| 10 | Current DEFCON level remains 5 – Green. Iran is now tying an end to the U.S.-Iran war to non-interference in its nuclear programme, while activity at Pickaxe Mountain has prompted a new U.S. strike warning.
https://defconwarningsystem.com/current-defcon-level/ | 475 |
| 11 | Iran makes non-interference in Iran’s nuclear programme a condition for ending U.S.–Iran war.
Details: https://community.defconwarningsystem.com/threads/iran-makes-non-interference-in-iran%E2%80%99s-nuclear-programme-a-condition-for-ending-u-s-%E2%80%93iran-war.26855/ | 448 |
| 12 | Iran makes non-interference in Iran’s nuclear programme a condition for ending U.S.–Iran war. | 404 |
| 13 | Current DEFCON level remains 5 – Green. Iran war tensions are rising as Strait of Hormuz traffic falls and Houthi attacks hit Saudi Arabia. The IAEA still cannot verify Iran’s nuclear programme.
Full assessment:
https://defconwarningsystem.com/current-defcon-level/ | 482 |
| 14 | Current DEFCON level remains 5 – Green. Iran war tensions are rising as Strait of Hormuz traffic falls and Houthi attacks hit Saudi Arabia. The IAEA still cannot verify Iran’s nuclear programme.
Full assessment:
https://defconwarningsystem.com/current-defcon-level/ | 513 |
| 15 | External power restored to Zaporizhzhia Nuclear Power Plant | 517 |
| 16 |  NEW DEFCON UPDATE:
Russia’s nuclear-use debate is becoming more explicit as direct U.S.–Iran attacks intensify. What do these developments—and new signals from Zaporizhzhia and Korea—mean for the risk of nuclear war?
Read the full update:
https://defconwarningsystem.com/2026/09/07/nuclear-war-risk-update-7-september-2026/ | 561 |
| 17 | Current DEFCON level remains 5 – Green. U.S.-Iran war fighting continues as the Iran nuclear programme faces new IAEA/UN Security Council pressure, while Russian nuclear-use rhetoric is hardening.
Full assessment:
https://defconwarningsystem.com/current-defcon-level/ | 570 |
| 18 | Current DEFCON level remains 5 – Green. Iran nuclear programme concerns are rising as the U.S., UK, France and Germany move to refer Tehran to the UN Security Council over unresolved IAEA access. Full assessment:
https://defconwarningsystem.com/current-defcon-level/ | 599 |
| 19 | https://defconwarningsystem.com/current-defcon-level/
The continuing U.S.–Iran conflict remains the most significant immediate area of concern. Iran has continued missile and drone attacks against U.S. and allied targets following the latest American strikes, including an attack against a U.S. base in Kuwait. At the same time, U.S. officials are reportedly seeking to contain the present round of fighting rather than immediately expand the campaign, while Iranian President Masoud Pezeshkian continues to signal willingness to return to the June interim agreement if Washington reciprocates. The combination of active military exchanges and an incomplete diplomatic off-ramp keeps the possibility of renewed escalation high.
Iran’s nuclear programme remains a separate and particularly important concern. The IAEA has made no progress in verifying Iran’s stockpile of approximately 440.9 kilograms of uranium enriched to 60%, and inspectors continue to lack access to key nuclear sites. The inability to determine the location and condition of this material creates increasing uncertainty over Iran’s nuclear capabilities while the military confrontation continues.
Russia–NATO tensions remain under observation following Germany’s attribution of an attempted explosive-drone attack at Leipzig/Halle Airport to Russian state agencies and the subsequent deterioration in German–Russian relations. There is also a potentially stabilising signal: Russia and Ukraine have both spoken of renewed diplomatic momentum towards ending the war, although no concrete peace framework has yet emerged.
North Korea continues to reject denuclearisation and says its nuclear arsenal will continue to grow. This does not presently indicate unusual nuclear-force preparations, but Pyongyang’s position substantially limits the prospects for near-term progress through renewed U.S. diplomatic outreach.
Last assessed: 18:26 UTC, 3 September 2026 | 605 |
| 20 | Current DEFCON level remains 5 – Green. The U.S.-Iran war has seen its heaviest exchange since July, while the IAEA still cannot verify Iran’s 60%-enriched uranium stockpile.
What we’re watching:
https://defconwarningsystem.com/current-defcon-level/ | 559 |
