As the details around the memorandum of understanding between the U.S. and Iran emerge, Vice President JD Vance, who has been deputized with leading the effort, and Secretary of State Marco Rubio, ostensibly the Trump administration’s top diplomat, have offered different messaging around the issue of Lebanon and Hezbollah being subsumed into discussions with Tehran.

After the U.S. and Iran agreed to create a “deconfliction cell” for military operations in Lebanon — a mechanism that, notably, does not include Israel — Vance said on Monday that the U.S. will be counting on Iran to “rein in” its proxy Hezbollah, without referencing Tehran’s material support for the terror group. 

Vance called on Israel to respond to Hezbollah’s attacks “in the context of a conversation that’s ongoing between Hezbollah, Lebanon, Israel and other partners in the region.” He said the conflict is “a bit of a chicken and egg problem,” in which he claimed lower-level Hezbollah operatives are firing on Israel without approval from their superiors.

Rubio, meanwhile, has been clearer about Iran’s role in propagating terror in the Middle East. Arriving in the United Arab Emirates on Tuesday, he said a “complete end of hostilities in the entire region” is “not possible … as long as Iranian proxies are launching missiles and drones from Iraq and are participating in terrorism like Hamas did and like Hezbollah did.”

WATCH: Marco Rubio said upon arriving in Abu Dhabi that the U.S.–Iran and Israel–Lebanon diplomatic tracks “are separate because Lebanon is a sovereign country,” while adding that Iran’s “support and sponsorship of Hezbollah” will be part of “our conversations with the Iranians.” pic.twitter.com/iADhszGTZC

— Jewish Insider (@jewishinsider) June 23, 2026

Rubio also distanced the Lebanon conflict from negotiations with Iran: Asked if he believes the Israel-Lebanon peace process should be separate from the Iran discussions, Rubio said, “That process is separate.”

“It’s separate because Lebanon is a sovereign country. … When it comes to Lebanon and what’s happening inside of Lebanon, we’re going to negotiate a deal directly with the Lebanese government,” he continued, again without mentioning Israel.

“Now, there’s an Iranian issue with regards to Lebanon, and that is their support and sponsorship of Hezbollah. And so that factor will be discussed as part of our conversation with the Iranians, but … the future of Lebanon belongs to the Lebanese people, through their sovereign, elected government, and that’s who we’re going to be working with,” Rubio said.

He referenced a phone call he and Vance held earlier on Tuesday with Lebanese President Joseph Aoun, who said in a readout that the deconfliction mechanism will now include Lebanon as a party.