Nuclear policy specialist David Albright explains how his organization is monitoring for damage to nuclear sites following U.S. and Israeli strikes

Ballistic experts say it's too soon to determine how much damage Iran's nuclear facilities sustained in the weekend attack. On Saturday night, the United States targeted nuclear sites in Iran believed to be essential to the country's ability to produce nuclear weapons: a uranium enrichment site located in northwestern Iran -- deep inside a mountain in Fordo -- along with another uranium enrichment site in Natanz and the Isfahan Nuclear Technology Center,

As of this month, the U.S. military had about 40,000 service members in the Middle East, according to a U.S. official.

U.S. President Donald Trump claimed that Israel and Iran had agreed to a “complete and total ceasefire" soon after Iran launched a limited missile attack Monday on a U.S. military base in Qatar, retaliating for the American bombing of its nuclear sites.

Iran said its missile attack on Al Udeid Air Base in Qatar matched the number of bombs dropped by the United States on its nuclear sites this weekend.