'Prepare to depart': US embassies issue alert across Middle East amid Iran tensions

US embassies in Middle East urged citizens to depart due to potential conflict escalation. The security alerts warned of unpredictable Iranian actions and possible attacks on US interests. President Trump threatened Iran with severe military action following alleged truce violations. Iran warned countries supporting the US against facing war's flames. Regional shipping and travel face disruptions amid ongoing hostilities and heightened tensions.