State Department tells Americans worldwide to 'exercise increased caution'

The war entered its fourth week on Saturday.

Last Updated: March 22, 2026, 8:29 PM EDT

President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israel strikes attack targeting military and government sites, officials said.

Ayatollah Ali Khamenei was among those killed in Tehran on the first day of strikes and his son Mojtaba Khamenei was chosen to succeed him. Iran is responding with missile and drone attacks targeting Israel, regional U.S. bases and multiple Gulf nations. Iran is also attempting to block some shipping traffic through the Strait of Hormuz.

Israel is also intensifying its long-running strike campaign against the Iran-backed Hezbollah militia in Lebanon.

Watch special coverage on Nightline, "War with Iran," each night on ABC and streaming on Disney+ and Hulu.

Mar 17, 2026, 4:32 PM EDT

DNI head backs Trump’s Iran threat determination after Kent resignation

Hours after National Counterterrorism Center Director Joe Kent resigned over his objections to the war in Iran. Director of National Intelligence Tulsi Gabbard on Tuesday publicly backed President Donald Trump’s authority to determine what constitutes an imminent threat on the war.

“As our Commander in Chief, he is responsible for determining what is and is not an imminent threat, and whether or not to take action he deems necessary to protect the safety and security of our troops, the American people and our country,” Gabbard tweeted.

In the lengthy X post on Tuesday, Gabbard stopped short of directly addressing Kent’s resignation, or Kent by name.

“The Office of the Director of National Intelligence is responsible for helping coordinate and integrate all intelligence to provide the President and Commander in Chief with the best information available to inform his decisions,” Gabbard added.

“After carefully reviewing all the information before him, President Trump concluded that the terrorist Islamist regime in Iran posed an imminent threat and he took action based on that conclusion,” she continued.

Mar 17, 2026, 3:58 PM EDT

More than a dozen Reaper drones lost in combat

More than a dozen unmanned MQ-9 Reaper drones have been lost in combat as part of the operations against Iran, two U.S. officials confirmed to ABC News.

The Reaper drones were either lost to Iranian missile fire or were destroyed on the ground by incoming fire.

Reaper drones can be used as reconnaissance aircraft, but they are also equipped with Hellfire missiles used to strike at targets.

A U.S. Air Force MQ-9 Reaper assigned to the 556th Test and Evaluation Squadron armed with an AIM-9X Block 2 missile sits on the ramp at Creech Air Force Base, Nevada, Sept. 3, 2020.
Senior Airman Haley Stevens/USAF

The loss of this number of Reapers is indicative of how many of these key unmanned aircraft must be operating as part of the U.S. operations against Iran.

The loss of the drones in the Iran war was first reported by the Wall Street Journal.

Mar 17, 2026, 3:58 PM EDT

IRGC confirms death of Basij commander

The Islamic Revolutionary Guard Corps confirmed that Basij commander Gholamreza Soleimani has been killed in an "Israeli-U.S. attack."

In a statement on Tuesday, the IRGC said that Soleimani's assassination shows "importance and role of the Basij" in the fight against Israel and the United States.

Mar 17, 2026, 3:08 PM EDT

Israel says it will deepen its position in Southern Lebanon

The Israel Defense Forces said on Tuesday they are deepening their position into Southern Lebanon, claiming they are creating "additional layer of security for residents of northern Israel."

"In recent days, IDF troops from the 36th Division have begun limited and targeted ground operations aimed at enhancing the forward defense area," the IDF said in a statement.

"The troops are continuing efforts to establish the forward defensive posture in order to remove threats and create an additional layer of security for residents of northern Israel," the IDF said.

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