Israel and Iran exchanged strikes a week into their war Friday as President Donald Trump weighed U.S. military involvement and new diplomatic efforts got underway.

As the attacks by Iran and Israel continue into their sixth day, here's a look at what we know about the conflict, and if the US will deploy troops.

Israel and Iran have been enemies for decades — but this is their most sustained direct fighting ever. Here’s how a shadow war erupted into an overt conflict.