Current DEFCON Warning System™ Alert Level

Condition Green
There are currently no imminent nuclear threats at this time.
Current Assessment
The continuing U.S.–Iran conflict remains the most significant immediate area of concern. Commercial traffic through the Strait of Hormuz remains severely restricted, with only four commodity vessels recorded on Thursday compared with a 10-day average of approximately 16. Three LNG vessels have reappeared outside the Strait, providing a limited positive indication that some energy movements are resuming, but the broader maritime confrontation remains unresolved. Iran-aligned Houthi gains along Yemen’s Red Sea coast have also increased pressure on the Bab el-Mandeb route, creating a second major regional shipping concern.
Iran’s nuclear programme remains the principal nuclear-specific concern. A statement calling for withdrawal from the Nuclear Non-Proliferation Treaty has now been signed by 130 Iranian lawmakers, while legislators are preparing a “triple-urgency” withdrawal bill. The proposal has not yet formally reached parliament’s National Security and Foreign Policy Committee, and President Masoud Pezeshkian continues to state that Iran is not seeking nuclear weapons. Separately, Russia and China have blocked continuation of independent UN monitoring of sanctions on Iran, further reducing international visibility into sanctions compliance while IAEA access to Iran’s nuclear programme remains severely restricted.
The Saudi–Pakistan security relationship has also become more significant. Pakistan’s senior military spokesman has described Islamabad’s commitment to Saudi security as unconditional and said Pakistan stands with the kingdom both diplomatically and physically and would go “to any extent” required to defend it. Pakistani forces are already deployed in Saudi Arabia. There remains no public indication that Pakistan’s nuclear deterrent has been extended to Saudi Arabia, but the increasingly explicit defence commitment bears watching as Houthi attacks on Saudi territory continue and a nuclear-armed Pakistan faces growing pressure to become more directly involved.
Last assessed: 15:19 UTC, 18 September 2026
Scheduled updates to the Current Alert page will pause after this assessment due to planned webmaster leave. Routine updates will resume on 28 September 2026.
The DEFCON Warning System continuously evaluates developments that could affect nuclear-war risk. The DEFCON level and this assessment may be changed at any time as conditions warrant.
