State Department tells Americans worldwide to 'exercise increased caution'

President Donald Trump said that "most of our NATO 'allies'" do not want to join the U.S. and Israel's war against Iran.

Trump claimed allies' refusal to join is "despite the fact that almost every Country strongly agreed with what we are doing, and that Iran cannot, in any way, shape, or form, be allowed to have a Nuclear Weapon," he wrote in a post on social media.

"Because of the fact that we have had such Military Success, we no longer 'need,' or desire, the NATO Countries’ assistance — WE NEVER DID! Likewise, Japan, Australia, or South Korea .... WE DO NOT NEED THE HELP OF ANYONE!" he said in the post.

French President Emmanuel Macron said the country would never take part in operations to unblock the Strait of Hormuz, and that it is carrying on with work to prepare a coalition that could provide freedom of navigation once hostilities ended, according to Reuters.

"We are not party to the conflict and therefore France will never take part in operations to open or liberate the Strait of Hormuz in the current context," Macron said at the start of a cabinet meeting to discuss the conflicts in the Middle East, according to Reuters.

National Counterterrorism Center Director Joe Kent resigned Tuesday over his opposition to the war in Iran, becoming the highest-profile administration official to step down publicly over the conflict.

In a resignation letter posted publicly on social media, Kent wrote that Iran posed “no imminent threat to our nation” and said he could not “in good conscience” support the war. The National Counterterrorism Center is housed within the Office of the Director of National Intelligence. ABC News has reached out to ODNI for comment.

Kent, who is an Oregon native, is a combat veteran who served over 20 years in the U.S. Army and completed 11 combat deployments in the Middle East. Kent led the U.S. counterterrorism and counternarcotics enterprise and he served as the principal counterterrorism adviser to the president, according to ODNI.

Kent also invoked a deeply personal loss in explaining his decision. He is a Gold Star husband whose late wife, Navy Senior Chief Petty Officer Shannon Kent, was killed in action during a suicide bombing while serving in Syria in 2019.

"I cannot support sending the next generation off to fight and die in a war that serves no benefit to the American people nor justifies the cost of American lives," Kent wrote in his resignation letter.

A tanker at anchor off the coast of the United Arab Emirates was struck on Tuesday by "falling debris" rather than a projectile, as had previously been thought, the U.K. Maritime Trade Operations Centre said in an updated advisory.

The vessel, which has not been publicly identified, was "subjected to falling debris from interceptions in the vicinity of the vessel," UKMTO said.

There was "minor" damage to the vessel and the crew were reported as safe, the organization said.

-ABC News' Zoe Magee

The Israel Defense Forces said on Tuesday that Ali Larijani, the influential Iranian security official who’d been a key representative of former Supreme Leader Ali Khomenei, was killed in a "precise" Israeli aerial strike.

The IDF statement followed the Israeli defense minister's announcement of the death.

"Following the elimination of Khamenei, Larijani consolidated his status as the de facto leader of the Iranian regime and led the combat efforts against the State of Israel and countries across the region," the IDF said in a statement.

Describing him as the "de facto leader" of the Iranian regime, the IDF said that Larijani was killed by an Israeli Air Force strike near Tehran.

Israel described Larijani’s death as a "further blow" to the Iranian leadership’s abilities to manage the war against the U.S. and Israel.