As Iran retaliates, largest US military base in Middle East hit by ballistic missile, Qatar says

The Israel Defense Forces said Tuesday that the Israeli Navy killed a senior Hezbollah operative in strikes on the Lebanese capital Beirut on Monday.

The IDF alleged that Rida Hazaa'i served as the "head of the buildup division for Hezbollah" on behalf of Iran's Quds Force -- a unit within the Islamic Revolutionary Guard Corps tasked with supporting Iran-aligned armed groups abroad.

The IDF said Hazaa'i also served as chief of staff of the Quds Force's Lebanon Corps.

U.S. Ambassador to Israel Mike Huckabee advised Americans in Israel that there are “VERY LIMITED” options for leaving the country.

"As of now, the best is utilizing Israel's Ministry of Tourism shuttle bus to Taba, Egypt and getting flights from there or going on to Cairo for flights back to the US,” he said in a post on X.

Huckabee advised against exiting via Jordan, which has been the State Department’s primary ground option during past conflicts.

-ABC News' Shannon Kingston

The U.S. embassies in Jordan, Bahrain, Iraq, the United Arab Emirates, Qatar and Kuwait have ordered non-emergency personnel and family members to leave those countries citing "the onset of hostilities" between the U.S. and Iran.

Previously, Bahrain was on an authorized departure for this nonessential staff and their relatives. This is the first order of this kind handed down in Jordan during the conflict.

The State Department cited the "ongoing threat of drone and missile attacks from Iran and significant disruptions to commercial flights" in its departure orders.

-ABC News' Shannon Kingston

President Donald Trump took to social media late Monday night to tout U.S. munitions stockpiles.

"The United States Munitions Stockpiles have, at the medium and upper medium grade, never been higher or better - As was stated to me today, we have a virtually unlimited supply of these weapons," Trump wrote.

He said that the U.S. will "easily prevail" in this war and that the country is prepared for the operation to go on for "whatever it takes." Trump wrote that "Wars can be fought 'forever,' and very successfully, using just these supplies."

However, Trump did acknowledge that the stockpile of some of the highest-grade munitions is "not where we want it to be," blaming that on U.S. support for Ukraine.

"The United States is stocked, and ready to WIN, BIG!!!" Trump said at the end of the post.

-ABC News' Meghan Mistry