US-Iran Conflict SITREP: Gulf Disruptions and Lebanon Escalation — March 12, 2026

The US-Iran conflict, now in its second week since initiation on 28 February 2026, has escalated into a multi-domain confrontation involving airstrikes, missile exchanges, maritime disruptions, and cyber operations. US and Israeli forces have conducted precision strikes on Iranian nuclear facilities, radar stations, airfields, and IRGC checkpoints, resulting in significant degradation of Iran's military infrastructure. Iran has retaliated with IRGC missile and drone attacks on US bases, Israeli targets, and commercial shipping in the Persian Gulf, effectively closing the Strait of Hormuz and causing global oil price surges. Hezbollah's involvement from Lebanon has intensified cross-border rocket barrages, drawing Israeli counterstrikes and exacerbating the humanitarian crisis in the region. Casualties and displacement are mounting, with over 3.2 million internally displaced in Iran and 687 deaths reported in Lebanon from Israeli operations. The assassination of Supreme Leader Ali Khamenei has led to Mojtaba Khamenei's ascension, signaling regime continuity despite US intelligence assessments indicating no imminent collapse. International responses include Russian humanitarian aid, UN condemnations, and diplomatic calls for de-escalation, while cyber incidents, such as the Handala hack on US firm Stryker, highlight the broadening conflict scope. Economic impacts are severe, with the US expending over $11 billion in the first week alone. Proxy actions in Iraq, Syria, and the Gulf underscore Iran's asymmetric strategy, while Israeli operations in Lebanon risk ground escalation. The conflict's trajectory remains volatile, with no clear end in sight amid unrelenting strikes and naval interdictions.