Trump has previously threatened military action against Iran if it were to target US personnel and bases, but he did not announce any military action, saying Iran's attack had caused no casualties. On January 9, he said "No Americans were harmed in last night's attack by the Iranian regime."
Now, one month later, Pentagon has admitted that 109 US soldiers in Iraq were diagnosed with brain injuries. That is a considerable damage. How will this change US response to the Iranian attack?