The DEFCON Warning System™

The World’s Only Public Nuclear Threat Advisory System. Independent, real-time analysis of global nuclear tensions. Since 1984.

DEFCON 5 Green

Strategic Threats & Global Stability Briefing – September 8, 2025

This is The DEFCON Warning System. Alert status for 1350 hours, UTC, Monday, September 8, 2025:

Condition Green – DEFCON 5.

There are currently no imminent nuclear threats at this time.

On August 29, France and Germany unveiled JEWEL, a bilateral initiative establishing a European early-warning missile detection system independent of NATO, NORAD, or U.S. systems. JEWEL integrates ground-based over-the-horizon radars with a space-based satellite component, derived from the ongoing ODIN’S EYE project.

This reflects a deliberate European shift toward defence autonomy—a clear signal that reliance on U.S. or NATO early-warning infrastructure is no longer considered sufficient. JEWEL is set to be open to other European partners, aiming to strengthen collective resilience and rapid missile threat detection.


Russia Expands Military Footprint in the Arctic

Meanwhile, Russia is quietly constructing a substantial military base on Wrangel Island—a remote Arctic territory historically claimed by the United States—escalating geopolitical friction in the Arctic.

The installation, known as Ushakovskoye, is being transformed into a fortified outpost. Infrastructure developments include extended runways, new fuel depots, barracks, and the deployment of a Sopka-2 phased-array radar. This system is capable of detecting aircraft at ranges up to 350 kilometres, giving Russia an expanded surveillance reach over NATO and U.S. forces while also monitoring traffic along the increasingly strategic Northern Sea Route.

What had once been a largely uninhabited nature preserve is now becoming an operational base for projecting Russian power into the Arctic. The move underscores Moscow’s determination to secure resources and shipping lanes in the region, while also directly challenging longstanding U.S. claims over Wrangel Island.


NATO Warns of Long-Term Confrontation

At a security conference earlier this month, NATO Secretary-General Mark Rutte issued a stark warning: both Russia and China are investing heavily in their defence industries, positioning themselves for a protracted confrontation with the West.

According to Rutte, this is not a temporary standoff or a passing cycle of military posturing. Instead, it represents a strategic rivalry that could shape global security for decades to come. He emphasized that NATO must adapt to this reality by boosting industrial capacity, strengthening resilience, and preparing for sustained pressure rather than short-term crisis management.

This warning builds on NATO’s June 2025 Hague Summit, where member states agreed to increase defence and security spending to 5% of GDP by 2035, with progress to be reviewed in 2029. The goal reflects an effort to shift from the minimum 2% guideline toward a true wartime production posture—an acknowledgment that adversaries are scaling their capabilities at an accelerating pace.


Iran Offers Monitoring in Exchange for Sanctions Relief

In the Middle East, Iran has opened the door to potential compromise. Foreign Minister Abbas Araghchi announced that Tehran is prepared to accept strict international monitoring of its nuclear facilities, including limitations on uranium enrichment, in exchange for the lifting of sanctions.

Araghchi criticized recent European actions to trigger UN “snapback” sanctions, claiming they unfairly align Europe with U.S. hardline policies and risk undermining Europe’s credibility as a mediator. The comments signal Tehran’s attempt to shift diplomatic momentum back in its favour, particularly as its economy struggles under sanctions pressure.

However, International Atomic Energy Agency (IAEA) Director General Rafael Grossi warned that time is running short. A 30-day snapback window, launched on August 28 by France, Britain, and Germany, is now ticking down. Without an agreement in that period, automatic reimposition of UN sanctions could take effect, escalating tensions and potentially shutting the door on negotiations.


The DEFCON Warning System is a private intelligence organization which has monitored and assessed nuclear threats by national entities since 1984. It is not affiliated with any government agency and does not represent the alert status of any military branch. The public should make their own evaluations and not rely on the DEFCON Warning System for any strategic planning. At all times, citizens are urged to learn what steps to take in the event of a nuclear attack. If this had been an actual attack, the DEFCON Warning System will give radiation readings for areas that are reported to it. Your readings will vary. Official news sources will have radiation readings for your area.

For immediate updates, go to www.defconwarningsystem.com. Breaking news and important information can be found on the DEFCON Warning System community forum and on the DEFCON Twitter feed DEFCONWSAlerts. You may also subscribe to the DEFCON Warning System mailing list. Note that Twitter updates may be subject to delays. The next scheduled update is 1350 hours, September 15, 2025. Additional updates will be made as the situation warrants, with more frequent updates at higher alert levels.

This concludes this report of the DEFCON Warning System.

Ongoing Geointel and Analysis in the theater of nuclear war.

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© 2025 The DEFCON Warning System. Established 1984.

The DEFCON Warning System is a private intelligence organization which has monitored and assessed nuclear threats by national entities since 1984. It is not affiliated with any government agency and does not represent the alert status of any military branch. The public should make their own evaluations and not rely on the DEFCON Warning System for any strategic planning. At all times, citizens are urged to learn what steps to take in the event of a nuclear attack.