Good morning and welcome to face the nation. As we come on the air, the conflict in the Middle East appears to be widening with the U.S. and Israel in their second day of attacks against Iran.

And Iran has escalated there, retaliatory strikes aimed at U.S. interests in neighboring countries, as well as targets inside Israel.

The bombing kicked off early Saturday morning.

The only public appearance from President Trump at this point

was a video released soon after the strikes began. It included this chilling warning.

The lives of courageous American heroes may be lost and we may have casualties that often

happens in war, but we're doing this, not for now, we're doing this for the future,

and it is a noble mission.

And that prophecy has now come true.

As U.S. Central Command just released a statement announcing the first known American casualties

of Operation Epic Fury.

Three service members are dead, and five are seriously wounded.

We'll cover all angles of this ongoing conflict that has enormous international implications

for the U.S. We'll start with our Charlie Daggeta in Tel Aviv.

Iran began 40 days of mourning for Ayatollah Ali Khomeini after state-run media confirmed

that he was killed at his Tehran compound. His successor has been announced as Ali Reza Arafi

to lead a temporary counsel, but who's really in charge and where they can even meet safely is

another matter. Israel Defense Forces released this video today, claiming to show multiple

airstrikes blowing up Iranian government headquarters this morning. CBS News cannot independently

verify that claim. Intelligence sources tell CBS News as many as 40 senior Iranian officials were killed

in the first wave of strikes.

Iran's Islamic Republican Guard Corps vowed revenge, saying they've launched the most

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