U.S. officials said on the event date that Israel gave Secretary of Defense Lloyd Austin advance notice that a military operation in Lebanon was coming, but did not disclose the details of what would be hit. The disclosure came as cross-border attacks between Israel and Hezbollah accelerated and the United States tried to understand how far the fighting could spread.

The report centers on one point: Washington says it was warned, but not informed. According to the officials, Austin held multiple calls this week with Israeli Defense Minister Yoav Gallant, including one on the event date, and one of those conversations included a heads-up that an operation in Lebanon would take place later that day. The U.S. officials said the warning stopped well short of a full briefing. They said the United States received no advance notice of the specific nature of the attack.

That distinction mattered because the same day saw one of the most dramatic escalations in months of fighting along Israel’s northern front. Thousands of pagers belonging to Hezbollah militants exploded in an attack widely blamed on Israel, and officials said the action was followed by a second wave of strikes on walkie-talkie radios the next day. U.S. officials said Washington was surprised by the specifics of the operation, even while being kept aware that an operation was underway.

The Pentagon acknowledged that Austin and Gallant had spoken four times during the week, though it did not lay out a full timeline for those calls. Pentagon spokeswoman Sabrina Singh said the U.S. had not changed its force posture in the region in response to the surge in attacks. That suggested Washington was tracking the escalation closely, but had not at that point shifted military deployments as a direct consequence.

Austin used the Wednesday call, according to Singh, to speak about regional security developments and to reiterate U.S. support for Israel amid threats from Iran, Hezbollah and other Iranian-backed groups. He also pushed for de-escalation and for a cease-fire deal that would bring home hostages still held by Hamas. The U.S. position, at least publicly, remained a mix of support for Israel and caution about the broader consequences of widening the war.

Questions about contingency planning were also part of the day’s discussion. Asked whether the Pentagon had been asked to prepare for a military evacuation of Americans in Lebanon, Singh said it had not received such a request from the State Department. State Department officials had already urged U.S. citizens in Lebanon to keep a low profile and review security precautions. At the same time, White House and State Department officials said longstanding evacuation plans existed for Lebanon and other countries, but there was no sign that they were about to be activated.

National Security Council spokesman John Kirby said there were evacuation plans available for many places, but that the administration was not at a moment where it thought such a step was imminent. Other officials said U.S. Navy ships carrying Marines were already positioned in the Mediterranean Sea in case they were needed.

The episode showed how quickly the Israel-Hezbollah confrontation had become not just a military issue on the ground, but also a test of communication and crisis management between allies. U.S. officials were left trying to parse a warning that signaled something was coming, while still being kept at arm’s length from the operational details. In a region already under severe strain, that gap in information was enough to matter.