https://cdnph.upi.com/ph/st/th/5271784651412/2026/upi/137cfc134fb9e83fba26737f54b1e850/v1.5/State-Department-issues-worldwide-travel-warning-for-Americans.jpg" /> The State Department issued a worldwide caution for travelers because of rising conflict in Iran "with the potential for unforeseen escalation."