Indicators and Warnings: US-Iran Nuclear Brinkmanship
Date: 2026-02-12
Scenarios Being Monitored
| # | Scenario | Current Probability |
|---|---|---|
| S1 | Partial deal / phased framework (H1+H4 convergence) | 30-40% |
| S2 | Managed ambiguity / sustained pressure (H5) | 20-25% |
| S3 | Talks collapse → second strikes (H2/H3) | 15-25% |
| S4 | Comprehensive deal (JCPOA-level) | 5-10% |
| S5 | Wild card: Regime collapse / revolution | 5-10% |
| S6 | Wild card: Iranian nuclear sprint / breakout | 5-10% |
Indicator Matrix
| Indicator | Type | S1 (Deal) | S2 (Ambiguity) | S3 (Strikes) | S5 (Collapse) | S6 (Sprint) | Observable? | Status |
|---|---|---|---|---|---|---|---|---|
| Round 2 talks scheduled within 2 weeks | Leading | X | Yes | Not yet seen (6 days post-Oman) | ||||
| B-2 deployment to Diego Garcia | Leading | X | Partially (satellite/flight tracking) | Not detected | ||||
| US shows enrichment flexibility privately | Leading | X | No (back-channel) | Unknown | ||||
| THAAD/Patriot surge to Gulf allies | Leading | X | Yes | Not seen | ||||
| Non-essential personnel evacuation from Gulf bases | Leading | X | Yes | Not seen | ||||
| Iran formalizes 3.5% enrichment offer | Leading | X | Yes | Hinted but not formalized | ||||
| IAEA reports anomalies at undeclared sites | Leading | X | X | Yes | Unknown | |||
| IRGC security force defections | Leading | X | Partially | Not seen | ||||
| Netanyahu's demands adopted by US | Leading | X | Yes | Not adopted — Trump overrode Feb 11 | ||||
| Military buildup responds to diplomatic calendar | Concurrent | X | Yes | Ambiguous — buildup continuing | ||||
| Oil price risk premium changes | Concurrent | X (decrease) | X (increase) | Yes | $5-8/barrel premium (~25-35% disruption probability) | |||
| Iran missile reconstitution pace | Concurrent | X | X | Partially | Approaching pre-war levels per Israeli intel | |||
| Iran internet restored | Leading | X | Yes | Still blacked out | ||||
| Bazaari strikes resume | Concurrent | X | Partially | Unknown — information blackout | ||||
| Carrier rotation/withdrawal begins | Leading | X | Yes | Not seen — both CSGs in/deploying | ||||
| Kushner regime-change planning intensifies | Leading | X | Partially | Active but at current level | ||||
| Congressional resolution pre-committing to reject deal | Leading | X | Yes | Not seen — 52-senator letter only | ||||
| Iran allows IAEA access to struck sites | Leading | X | Yes | Not seen — access still denied | ||||
| GBU-57 logistics movements from Whiteman AFB | Leading | X | Partially (transportation intelligence) | Unknown | ||||
| Forward deployment of CSAR assets | Leading | X | Partially | Unknown | ||||
| Trump sets public deadline for talks | Leading | X (if reasonable) | X (if ultimatum) | Yes | Not seen |
Warning Thresholds
Elevated concern (diplomatic track at risk) when:
- No Round 2 scheduled within 2 weeks of Oman talks (Feb 20 deadline)
- US publicly adopts Netanyahu's expanded demands (missiles + proxies as preconditions)
- Military buildup accelerates with bomber deployments or surge defensive systems to Gulf
- Iran conducts another provocative action (tanker seizure, drone incident, naval confrontation)
- Congressional legislation moves beyond letters to binding resolutions
High alert (strikes probable within 30 days) when:
- B-2 confirmed at Diego Garcia AND THAAD/Patriot surged to Gulf allies
- Non-essential personnel ordered to evacuate Gulf installations
- ISR constellation significantly increases (additional U-2/RQ-4/RC-135 sorties)
- Medical pre-positioning at regional bases
- Trump public language shifts from "deal" to "Iran refused to negotiate in good faith"
- Carrier air wings shift from patrol patterns to strike packaging
Critical (strikes imminent) when:
- All of the above PLUS forward deployment of combat search and rescue assets
- GBU-57 MOP logistics confirmed at Diego Garcia
- Carrier battle groups shift to strike positions in Arabian Sea
- US issues formal demands with explicit deadline (ultimatum)
- Coalition partners briefed on strike timelines
Regime collapse watch (Iran domestic) when:
- IRGC unit refuses orders or switches sides
- Charismatic opposition leader emerges with organizational capacity
- Protests reach Qom (religious establishment center) or major IRGC garrisons
- Iran's banking system begins failing (bank runs, ATM shutdowns)
- Subsidy system collapses (bread/fuel prices spike uncontrollably)
Collection Priorities
To improve warning capability, monitor:
- Diego Garcia satellite imagery — B-2 deployment is the single most important strike indicator
- IAEA reporting — any new safeguards anomalies or discrepancies at non-declared sites
- US military logistics — munitions shipments, THAAD/Patriot movements, medical pre-positioning
- Iranian diplomatic signals — Larijani's public statements, Araghchi's next moves, any formal counter-proposal
- Round 2 scheduling — the absence of a scheduled second round beyond Feb 20 is itself a warning indicator
- Oil market behavior — risk premium changes reflect aggregate market intelligence on strike probability
- Iranian internet restoration — restoration signals regime confidence; sustained blackout signals continued crisis
- Israeli intelligence leaks — quality and frequency of leaked assessments reflect advocacy intensity
- Gulf diplomatic activity — increased mediator urgency suggests deteriorating prospects
- IRGC communications — any break in silence from senior commanders regarding negotiations