US-Iran SITREP: Khamenei Assassination Sparks Hormuz Crisis — Escalation in Lebanon and Gulf, March 13, 2026

The US-Iran conflict has escalated dramatically over the past week, marked by intensive airstrikes, drone operations, and missile exchanges involving US, Israeli, and Iranian forces. Key developments include the assassination of Iran's Supreme Leader Ali Khamenei, the ascension of Mojtaba Khamenei who has vowed to maintain the closure of the Strait of Hormuz, and coordinated attacks on regional energy infrastructure. Oil prices have surged beyond $100 per barrel, disrupting global supply chains and prompting international economic responses. Humanitarian impacts are severe, with civilian casualties from strikes on schools, universities, and urban areas in Iran and Lebanon, drawing UN condemnation for violations of international law. Israeli operations have expanded into Lebanon, targeting Hezbollah positions and infrastructure in Beirut, while Iranian proxies in Iraq and Kuwait have intensified drone strikes on US bases using Shahed-101 UAVs. Cyber threats from Iran-linked hackers target US infrastructure, raising concerns over hybrid warfare. Political rhetoric from US President Trump emphasizes rapid dominance, but reports indicate war costs exceeding $11.3 billion in the first six days, with no clear exit strategy. Regional allies like Russia provide intelligence support to Iran, complicating coalition efforts. The conflict risks broader regional involvement, with threats to energy sites potentially triggering cascading retaliations. US and Israeli forces leverage AI-enhanced targeting for precision strikes, while Iran's responses focus on asymmetric tactics, including mining the Strait of Hormuz and proxy activations.