The United States and Saudi Arabia carried out joint airstrikes against Iran-backed groups in Iraq, killing at least eight members of the Iraqi Popular Mobilization Forces (PMF), according to reports. In a parallel escalation, Iran struck three oil tankers in the Strait of Hormuz and rejected an Omani proposal for managing the vital waterway, while also launching missiles at US military installations. Oil prices rose amid fears of supply disruptions in the region. The strikes mark a significant expansion of the Middle East conflict, drawing in major Gulf powers and threatening global energy markets. Iran claimed it intercepted oil tankers and fired on US positions, though details of damage remain unclear. Diplomatic efforts continue, but tensions show no sign of easing. The joint US-Saudi operation targeted positions of Iran-backed militias in Iraq, while Iran's naval actions in the Strait of Hormuz directly challenge the security of one of the world's most critical maritime chokepoints. The developments come as diplomatic initiatives, including an Omani mediation effort, appear to have stalled.