North Korea will conduct an underground nuclear weapons test.

NEXUS forecast made 2026-09-07 at 38% probability. Pending, resolves by 2026-10-07.

DPRK actor intelligence indicates significantly escalating military posture and expanding nuclear doctrine to include maritime capabilities; Bayesian DPRK Provocation Cycle equilibrium is ICBM launch/sanctions escalation (mixed, 70% confidence), but an actual nuclear test is a higher escalation rung than the missile tests already confirmed this cycle.

Probability: 38%
Timeframe: 30 days
Deadline: Oct 7in 8d
Made: Sep 7

Regimewartime

Every NEXUS forecast is recorded before its outcome and scored with the Brier score (0 is perfect, 0.25 is a coin flip). Misses stay on the record. How forecasts are made and scored.

Iran will impose a formal, complete closure of the Strait of Hormuz to all commercial tanker traffic (beyond harassment/mine incidents already confirmed).

geopolitical16%MISS

China will conduct a full-scale military invasion of Taiwan by December 31, 2026.

geopolitical5%

Russia and Ukraine will announce a formal, comprehensive ceasefire agreement (beyond prisoner exchanges or partial truces) within 30 days.

geopolitical16%

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US or Indian forces will conduct at least one confirmed surgical strike or cross-border military operation against Pakistan-based targets within 30 days.

geopolitical53%

North Korea will conduct an underground nuclear weapons test.

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