Iran has announced major progress on a new nuclear facility expansion at Bushehr, revealing that construction on the second and third reactor units is already 18% complete. The development comes just ahead of the second round of high-stakes U.S.-Iran nuclear negotiations in Geneva, raising global fears of escalation toward a wider Middle East war. The IAEA has warned Iran’s uranium stockpile could potentially produce up to a dozen nuclear devices, while inspectors still lack full access to sensitive sites. Satellite imagery also shows sealed tunnel entrances at Isfahan, signaling Tehran’s defensive preparations against possible U.S. or Israeli strikes. This nuclear advance could reshape regional alliances as Arab states signal they will not allow attacks on Iran from their territory.