U.S. President Donald Trump has confirmed that the United States has begun “major combat operations” in Iran, marking a significant escalation in tensions between Washington and Tehran. In an official message posted on social media, Trump said the strikes are aimed at destroying Iranian missile capabilities, naval assets, and other strategic military targets, warning that American casualties are possible.

Trump characterized the operation as necessary to defend the American people and prevent Iran from obtaining nuclear weapons, while offering Iranian forces the choice to lay down their arms or face “certain death.” The announcement follows weeks of failed negotiations over Iran’s nuclear program and growing diplomatic pressure.

The military action appears to be coordinated with Israeli forces, and Trump directly appealed to the Iranian public to take control of their own government once the operation concludes. International response has included urgent calls for de-escalation, alongside warnings of broader regional instability.

Stay tuned for updates as developments continue to unfold.

Iran crisis: Israel and US launch strikes as Trump confirms 'major combat operations' – https://t.co/k424A1E0LW

— Reuters Iran (@ReutersIran) February 28, 2026